Evolutionary origin of religions
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|Part of a series on|
|Anthropology of religion|
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The evolutionary origin of religions and religious behavior is a field of study related to evolutionary psychology, the origin of language and mythology, and cross-cultural comparison of the anthropology of religion. Some subjects of interest include Neolithic religion, evidence for spirituality or cultic behavior in the Upper Paleolithic, and similarities in great ape behavior.
- 1 Nonhuman religious behaviour
- 2 Relevant prerequisites for human religion
- 3 Evolutionary psychology of religion
- 4 Prehistoric evidence of religion
- 5 See also
- 6 References
- 7 Bibliography
- 8 External links
Nonhuman religious behaviour
Humanity's closest living relatives are common chimpanzees and bonobos. These primates share a common ancestor with humans who lived between six and eight million years ago. It is for this reason that chimpanzees and bonobos are viewed as the best available surrogate for this common ancestor. Barbara King argues that while non-human primates are not religious, they do exhibit some traits that would have been necessary for the evolution of religion. These traits include high intelligence, a capacity for symbolic communication, a sense of social norms, realization of "self" of continuity. There is inconclusive evidence that Homo neanderthalensis may have buried their dead which is evidence of the use of ritual. The use of burial rituals is thought to be evidence of religious activity, and there is no other evidence that religion existed in human culture before humans reached behavioral modernity. Other evidences have revealed that Homo neanderthalensis have made cave art, which would be a way of symbolic thinking close to the religious one.
Elephants demonstrate rituals around their deceased, which include long periods of silence and mourning at the point of death and a process of returning to grave sites and caressing the remains. Some evidence suggests that many species grieve death and loss.
Relevant prerequisites for human religion
Increased brain size
In this set of theories, the religious mind is one consequence of a brain that is large enough to formulate religious and philosophical ideas. During human evolution, the hominid brain tripled in size, peaking 500,000 years ago. Much of the brain's expansion took place in the neocortex. The cerebral neocortex is presumed to be responsible for the neuronal computations underlying complex phenomena such as perception, thought, language, attention, episodic memory and voluntary movement. According to Dunbar's theory, the relative neocortex size of any species correlates with the level of social complexity of the particular species. The neocortex size correlates with a number of social variables that include social group size and complexity of mating behaviors. In chimpanzees the neocortex occupies 50% of the brain, whereas in modern humans it occupies 80% of the brain.
Robin Dunbar argues that the critical event in the evolution of the neocortex took place at the speciation of archaic homo sapiens about 500,000 years ago. His study indicates that only after the speciation event is the neocortex large enough to process complex social phenomena such as language and religion. The study is based on a regression analysis of neocortex size plotted against a number of social behaviors of living and extinct hominids.
Stephen Jay Gould suggests that religion may have grown out of evolutionary changes which favored larger brains as a means of cementing group coherence among savannah hunters, after that larger brain enabled reflection on the inevitability of personal mortality.
Lewis Wolpert argues that causal beliefs that emerged from tool use played a major role in the evolution of belief. The manufacture of complex tools requires creating a mental image of an object which does not exist naturally before actually making the artifact. Furthermore, one must understand how the tool would be used, that requires an understanding of causality. Accordingly, the level of sophistication of stone tools is a useful indicator of causal beliefs. Wolpert contends use of tools composed of more than one component, such as hand axes, represents an ability to understand cause and effect. However, recent studies of other primates indicate that causality may not be a uniquely human trait. For example, chimpanzees have been known to escape from pens closed with multiple latches, which was previously thought could only have been figured out by humans who understood causality. Chimpanzees are also known to mourn the dead, and notice things that have only aesthetic value, like sunsets, both of which may be considered to be components of religion or spirituality. The difference between the comprehension of causality by humans and chimpanzees is one of degree. The degree of comprehension in an animal depends upon the size of the prefrontal cortex: the greater the size of the prefrontal cortex the deeper the comprehension.
Development of language
Religion requires a system of symbolic communication, such as language, to be transmitted from one individual to another. Philip Lieberman states "human religious thought and moral sense clearly rest on a cognitive-linguistic base". From this premise science writer Nicholas Wade states:
- "Like most behaviors that are found in societies throughout the world, religion must have been present in the ancestral human population before the dispersal from Africa 50,000 years ago. Although religious rituals usually involve dance and music, they are also very verbal, since the sacred truths have to be stated. If so, religion, at least in its modern form, cannot pre-date the emergence of language. It has been argued earlier that language attained its modern state shortly before the exodus from Africa. If religion had to await the evolution of modern, articulate language, then it too would have emerged shortly before 50,000 years ago."
Another view distinguishes individual religious belief from collective religious belief. While the former does not require prior development of language, the latter does. The individual human brain has to explain a phenomenon in order to comprehend and relate to it. This activity predates by far the emergence of language and may have caused it. The theory is, belief in the supernatural emerges from hypotheses arbitrarily assumed by individuals to explain natural phenomena that cannot be explained otherwise. The resulting need to share individual hypotheses with others leads eventually to collective religious belief. A socially accepted hypothesis becomes dogmatic backed by social sanction.
Morality and group living
Frans de Waal and Barbara King both view human morality as having grown out of primate sociality. Although morality awareness may be a unique human trait, many social animals, such as primates, dolphins and whales, have been known to exhibit pre-moral sentiments. According to Michael Shermer, the following characteristics are shared by humans and other social animals, particularly the great apes:
attachment and bonding, cooperation and mutual aid, sympathy and empathy, direct and indirect reciprocity, altruism and reciprocal altruism, conflict resolution and peacemaking, deception and deception detection, community concern and caring about what others think about you, and awareness of and response to the social rules of the group.
De Waal contends that all social animals have had to restrain or alter their behavior for group living to be worthwhile. Pre-moral sentiments evolved in primate societies as a method of restraining individual selfishness and building more cooperative groups. For any social species, the benefits of being part of an altruistic group should outweigh the benefits of individualism. For example, a lack of group cohesion could make individuals more vulnerable to attack from outsiders. Being part of a group may also improve the chances of finding food. This is evident among animals that hunt in packs to take down large or dangerous prey.
All social animals have hierarchical societies in which each member knows its own place. Social order is maintained by certain rules of expected behavior and dominant group members enforce order through punishment. However, higher order primates also have a sense of fairness. In a 2008 study, de Waal and colleagues put two capuchin monkeys side by side and gave them a simple task to complete: Giving a rock to the experimenter. They were given cucumbers as a reward for executing the task, and the monkeys obliged. But if one of the monkeys was given grapes, something interesting happened: After receiving the first piece of cucumber, the capuchin monkey gave the experimenter a rock as expected. But upon seeing that the other monkey got grapes, the capuchin monkey threw away the next piece of cucumber that was given to him.
Chimpanzees live in fission-fusion groups that average 50 individuals. It is likely that early ancestors of humans lived in groups of similar size. Based on the size of extant hunter-gatherer societies, recent Paleolithic hominids lived in bands of a few hundred individuals. As community size increased over the course of human evolution, greater enforcement to achieve group cohesion would have been required. Morality may have evolved in these bands of 100 to 200 people as a means of social control, conflict resolution and group solidarity. According to Dr. de Waal, human morality has two extra levels of sophistication that are not found in primate societies. Humans enforce their society's moral codes much more rigorously with rewards, punishments and reputation building. Humans also apply a degree of judgment and reason not otherwise seen in the animal kingdom.
Psychologist Matt J. Rossano argues that religion emerged after morality and built upon morality by expanding the social scrutiny of individual behavior to include supernatural agents. By including ever-watchful ancestors, spirits and gods in the social realm, humans discovered an effective strategy for restraining selfishness and building more cooperative groups. The adaptive value of religion would have enhanced group survival. Rossano is referring here to collective religious belief and the social sanction that institutionalized morality. According to Rossano's teaching, individual religious belief is thus initially epistemological, not ethical, in nature.
Evolutionary psychology of religion
Cognitive scientists underlined that religions may be explained as a result of the brain architecture that developed early in the genus Homo, through the history of life. However, there is disagreement on the exact mechanisms that drove the evolution of the religious mind. The two main schools of thought hold that either religion evolved due to natural selection and has selective advantage, or that religion is an evolutionary byproduct of other mental adaptations. Stephen Jay Gould, for example, believed that religion was an exaptation or a spandrel, in other words that religion evolved as byproduct of psychological mechanisms that evolved for other reasons.
Such mechanisms may include the ability to infer the presence of organisms that might do harm (agent detection), the ability to come up with causal narratives for natural events (etiology), and the ability to recognize that other people have minds of their own with their own beliefs, desires and intentions (theory of mind). These three adaptations (among others) allow human beings to imagine purposeful agents behind many observations that could not readily be explained otherwise, e.g. thunder, lightning, movement of planets, complexity of life. The emergence of collective religious belief identified the agents as deities that standardized the explanation.
Some scholars have suggested that religion is genetically "hardwired" into the human condition. One controversial proposal, the God gene hypothesis, states that some variants of a specific gene, the VMAT2 gene, predispose to spirituality.
Another view is based on the concept of the triune brain: the reptilian brain, the limbic system, and the neocortex, proposed by Paul D. MacLean. Collective religious belief draws upon the emotions of love, fear, and gregariousness and is deeply embedded in the limbic system through socio-biological conditioning and social sanction. Individual religious belief utilizes reason based in the neocortex and often varies from collective religion. The limbic system is much older in evolutionary terms than the neocortex and is, therefore, stronger than it much in the same way as the reptilian is stronger than both the limbic system and the neocortex.
Yet another view is that the behavior of people who participate in a religion makes them feel better and this improves their fitness, so that there is a genetic selection in favor of people who are willing to believe in religion. Specifically, rituals, beliefs, and the social contact typical of religious groups may serve to calm the mind (for example by reducing ambiguity and the uncertainty due to complexity) and allow it to function better when under stress. This would allow religion to be used as a powerful survival mechanism, particularly in facilitating the evolution of hierarchies of warriors, which if true, may be why many modern religions tend to promote fertility and kinship.
Still another view, proposed by F.H. Previc, is that human religion was a product of an increase in dopaminergic functions in the human brain and a general intellectual expansion beginning around 80 thousand years ago (kya). Dopamine promotes an emphasis on distant space and time, which is critical for the establishment of religious experience. While the earliest shamanic cave paintings date back around 40 kya, the use of ochre for rock art predates this and there is clear evidence for abstract thinking along the coast of South Africa 80 kya.
Prehistoric evidence of religion
The exact time when humans first became religious remains unknown, however research in evolutionary archaeology shows credible evidence of religious-cum-ritualistic behaviour from around the Middle Paleolithic era (45-200 thousand years ago).
The earliest evidence of religious thought is based on the ritual treatment of the dead. Most animals display only a casual interest in the dead of their own species. Ritual burial thus represents a significant change in human behavior. Ritual burials represent an awareness of life and death and a possible belief in the afterlife. Philip Lieberman states "burials with grave goods clearly signify religious practices and concern for the dead that transcends daily life."
The earliest evidence for treatment of the dead comes from Atapuerca in Spain. At this location the bones of 30 individuals believed to be Homo heidelbergensis have been found in a pit. Neanderthals are also contenders for the first hominids to intentionally bury the dead. They may have placed corpses into shallow graves along with stone tools and animal bones. The presence of these grave goods may indicate an emotional connection with the deceased and possibly a belief in the afterlife. Neanderthal burial sites include Shanidar in Iraq and Krapina in Croatia and Kebara Cave in Israel.
The earliest known burial of modern humans is from a cave in Israel located at Qafzeh. Human remains have been dated to 100,000 years ago. Human skeletons were found stained with red ochre. A variety of grave goods were found at the burial site. The mandible of a wild boar was found placed in the arms of one of the skeletons. Philip Lieberman states:
- "Burial rituals incorporating grave goods may have been invented by the anatomically modern hominids who emigrated from Africa to the Middle East roughly 100,000 years ago".
Matt Rossano suggests that the period between 80,000–60,000 years before present, following the retreat of humans from the Levant to Africa, was a crucial period in the evolution of religion.
Use of symbolism
The use of symbolism in religion is a universal established phenomenon. Archeologist Steven Mithen contends that it is common for religious practices to involve the creation of images and symbols to represent supernatural beings and ideas. Because supernatural beings violate the principles of the natural world, there will always be difficulty in communicating and sharing supernatural concepts with others. This problem can be overcome by anchoring these supernatural beings in material form through representational art. When translated into material form, supernatural concepts become easier to communicate and understand. Due to the association of art and religion, evidence of symbolism in the fossil record is indicative of a mind capable of religious thoughts. Art and symbolism demonstrates a capacity for abstract thought and imagination necessary to construct religious ideas. Wentzel van Huyssteen states that the translation of the non-visible through symbolism enabled early human ancestors to hold beliefs in abstract terms.
Some of the earliest evidence of symbolic behavior is associated with Middle Stone Age sites in Africa. From at least 100,000 years ago, there is evidence of the use of pigments such as red ochre. Pigments are of little practical use to hunter gatherers, thus evidence of their use is interpreted as symbolic or for ritual purposes. Among extant hunter gatherer populations around the world, red ochre is still used extensively for ritual purposes. It has been argued that it is universal among human cultures for the color red to represent blood, sex, life and death.
The use of red ochre as a proxy for symbolism is often criticized as being too indirect. Some scientists, such as Richard Klein and Steven Mithen, only recognize unambiguous forms of art as representative of abstract ideas. Upper paleolithic cave art provides some of the most unambiguous evidence of religious thought from the paleolithic. Cave paintings at Chauvet depict creatures that are half human and half animal.
Origins of organized religion
|Period years ago||Society type||Number of individuals|
Organised religion traces its roots to the neolithic revolution that began 11,000 years ago in the Near East but may have occurred independently in several other locations around the world. The invention of agriculture transformed many human societies from a hunter-gatherer lifestyle to a sedentary lifestyle. The consequences of the neolithic revolution included a population explosion and an acceleration in the pace of technological development. The transition from foraging bands to states and empires precipitated more specialized and developed forms of religion that reflected the new social and political environment. While bands and small tribes possess supernatural beliefs, these beliefs do not serve to justify a central authority, justify transfer of wealth or maintain peace between unrelated individuals. Organized religion emerged as a means of providing social and economic stability through the following ways:
- Justifying the central authority, which in turn possessed the right to collect taxes in return for providing social and security services.
- Bands and tribes consist of small number of related individuals. However, states and nations are composed of many thousands of unrelated individuals. Jared Diamond argues that organized religion served to provide a bond between unrelated individuals who would otherwise be more prone to enmity. In his book Guns, Germs, and Steel he argues that the leading cause of death among hunter-gatherer societies is murder.
- Religions that revolved around moralizing gods may have facilitated the rise of large, cooperative groups of unrelated individuals.
The states born out of the Neolithic revolution, such as those of Ancient Egypt and Mesopotamia, were theocracies with chiefs, kings and emperors playing dual roles of political and spiritual leaders. Anthropologists have found that virtually all state societies and chiefdoms from around the world have been found to justify political power through divine authority. This suggests that political authority co-opts collective religious belief to bolster itself.
Invention of writing
Following the neolithic revolution, the pace of technological development (cultural evolution) intensified due to the invention of writing 5,000 years ago. Symbols that became words later on made effective communication of ideas possible. Printing invented only over a thousand years ago increased the speed of communication exponentially and became the main spring of cultural evolution. Writing is thought to have been first invented in either Sumeria or Ancient Egypt and was initially used for accounting. Soon after, writing was used to record myth. The first religious texts mark the beginning of religious history. The Pyramid Texts from ancient Egypt are one of the oldest known religious texts in the world, dating to between 2400–2300 BCE. Writing played a major role in sustaining and spreading organized religion. In pre-literate societies, religious ideas were based on an oral tradition, the contents of which were articulated by shamans and remained limited to the collective memories of the society's inhabitants. With the advent of writing, information that was not easy to remember could easily be stored in sacred texts that were maintained by a select group (clergy). Humans could store and process large amounts of information with writing that otherwise would have been forgotten. Writing therefore enabled religions to develop coherent and comprehensive doctrinal systems that remained independent of time and place. Writing also brought a measure of objectivity to human knowledge. Formulation of thoughts in words and the requirement for validation made mutual exchange of ideas and the sifting of generally acceptable from not acceptable ideas possible. The generally acceptable ideas became objective knowledge reflecting the continuously evolving framework of human awareness of reality that Karl Popper calls 'verisimilitude' – a stage on the human journey to truth.
- Animal faith
- Cognitive science of religion
- Göbekli Tepe
- History of religion
- Theories about religions
- Timeline of religion
- Gibbons, Ann (Jun 13, 2012). "Bonobos Join Chimps as Closest Human Relatives". Archived from the original on June 20, 2018. Retrieved July 19, 2018.
- Ajit Varki; Daniel H. Geschwind; Evan E. Eichler (Oct 1, 2008). "Explaining human uniqueness: genome interactions with environment, behaviour and culture". Nature Reviews Genetics. 9: 3, 51–54. doi:10.1038/nrg2428. PMC 2756412. PMID 18802414.
- King, Barbara (2007). Evolving God: A Provocative View on the Origins of Religion. Doubleday Publishing. ISBN 0-385-52155-3.
- Excerpted from Evolving God by Barbara J. King[year needed]
- Palmer, Douglas, Simon Lamb, Guerrero Angeles. Gavira, and Peter Frances. Prehistoric Life: the Definitive Visual History of Life on Earth. New York, N.Y.: DK Pub., 2009.
- D. L. Hoffmann. et al., U-Th dating of carbonate crusts reveals Neandertal origin of Iberian cave art. Sciencie, Vol. 359, Issue 6378, 912-915, 2018.
- Bhattacharya, Shaoni (2005-10-26). "Elephants may pay homage to dead relatives". Biology Letters. 2 (1): 26–28. doi:10.1098/rsbl.2005.0400. PMC 1617198. PMID 17148317. Retrieved 2016-03-11.
- McComb, K.; Baker, L.; Moss, C. (2006-03-22). "African elephants show high levels of interest in the skulls and ivory of their own species | Biology Letters". Biology Letters. 2 (1): 26–28. doi:10.1098/rsbl.2005.0400. PMC 1617198. PMID 17148317. Retrieved 2016-03-11.
- Marc Bekoff, Grief in animals: It's arrogant to think we're the only animals who mourn 2009
- Ehrlich, Paul (2000). Human Natures: Genes, Cultures, and the Human Prospect. Washington, D.C.: Island Press. p. 214. ISBN 978-1-55963-779-4.
Religious ideas can theoretically be traced to the evolution of brains large enough to make possible the kind of abstract thought necessary to formulate religious and philosophical ideas
- Molnár, Zoltán; Pollen, Alex (1 January 2014). "How unique is the human neocortex?". Development. 141 (1): 11–16. doi:10.1242/dev.101279. PMID 24346696.
- Dávid-Barrett, T.; Dunbar, R. I. M. (2013-08-22). "Processing power limits social group size: computational evidence for the cognitive costs of sociality". Proceedings of the Royal Society of London B: Biological Sciences. 280 (1765): 20131151. doi:10.1098/rspb.2013.1151. ISSN 0962-8452. PMC 3712454. PMID 23804623.
- Dunbar, Robin I. M.; Shultz, Susanne (2010-06-01). "Bondedness and sociality". Behaviour. 147 (7): 775–803. doi:10.1163/000579510X501151. ISSN 1568-539X.
- "9 Brainy Facts About the Neocortex". mentalfloss.com. 17 November 2016. Retrieved 20 March 2018.
- Dunbar, Robin (2003). "THE SOCIAL BRAIN: Mind, Language, and Society in Evolutionary Perspective" (PDF). Archived from the original (– Scholar search) on September 11, 2008. Cite journal requires
- Stephen Jay Gould; Paul McGarr; Steven Peter Russell Rose (2007). "Challenges to Neo-Darwinism and Their Meaning for a Revised View of Human Consciousness". The richness of life: the essential Stephen Jay Gould. W. W. Norton & Company. pp. 232–233. ISBN 978-0-393-06498-8.
- Lewis Wolpert (2006). Six impossible things before breakfast, The evolutionary origins of belief. New York: Norton. ISBN 978-0-393-06449-0.
with regard to hafted tools, One would have to understand that the two pieces serve different purposes, and imagine how the tool could be used,
- Wolpert, Lewis (2006). Six impossible things before breakfast, The evolutionary origins of belief. New York: Norton. p. 82. ISBN 978-0-393-06449-0.
Belief in cause and effect has had the most enormous effect on human evolution, both physical and cultural. Tool use, with language, has transformed human evolution and let to what we now think of as belief
- Connor, Steve (August 5, 2011). "Can an ape learn to be human?". The Independent. London.[unreliable source?]
- Mohandas, E (2008). "Neurobiology of spirituality". Mens Sana Monogr. 6 (1): 63–80. doi:10.4103/0973-1229.33001. PMC 3190564. PMID 22013351.[unreliable source?]
- Lieberman (1991). Uniquely Human. Cambridge, Mass.: Harvard University Press. ISBN 978-0-674-92183-2.
- *"Wade, Nicholas – Before The Dawn, Discovering the lost history of our ancestors. Penguin Books, London, 2006. p. 8 p. 165" ISBN 1-59420-079-3
- Shermer, Michael (2004). "Why are we moral:The evolutionary origins of morality". The Science of Good and Evil. New York: Times Books. ISBN 978-0-8050-7520-5.
- CNN, By Elizabeth Landau. "Morality: It's not just for humans - CNN". cnn.com. Retrieved 20 March 2018.
Rossano, Matt (2007). "Supernaturalizing Social Life: Religion and the Evolution of Human Cooperation" (PDF). Cite journal requires
- Nicholas Wade. Scientist Finds the Beginnings of Morality in Primate Behavior. New York Times. March 20, 2007.[unreliable source?]
- Matthew Rutherford. The Evolution of Morality. University of Glasgow. 2007. Retrieved June 6, 2008
- Evolutionary Religious Studies (ERS): A Beginner's Guide Archived 2010-06-11 at the Wayback Machine[unreliable source?]
- "Darwin's God". The New York Times. 4 March 2007.
- Toward an evolutionary psychology of religion and personality Archived 2008-09-10 at the Wayback Machine[unreliable source?]
- Steven Pinker (29 October 2004). "The evolutionary psychology of religion". harvard.edu. Archived from the original on 2008-05-09. Retrieved 20 March 2018.
- Atran, S; Norenzayan, A (2004). "Religion's evolutionary landscape: counterintuition, commitment, compassion, communion". Behavioral and Brain Sciences. 27 (6): 713–30, discussion 730–70. CiteSeerX 10.1.1.687.8586. doi:10.1017/s0140525x04000172. PMID 16035401. Archived from the original on 2008-08-07.
- Dávid-Barrett, Tamás; Carney, James (2015-08-14). "The deification of historical figures and the emergence of priesthoods as a solution to a network coordination problem". Religion, Brain & Behavior. 0 (4): 307–317. doi:10.1080/2153599X.2015.1063001. ISSN 2153-599X.
- Kluger, Jeffrey; Jeff Chu; Broward Liston; Maggie Sieger; Daniel Williams (2004-10-25). "Is God in our genes?". TIME. Time Inc. Retrieved 2007-04-08.
- Lionel Tiger and Michael McGuire (2010). God's Brain. Prometheus Books. ISBN 978-1-61614-164-6. see pages 202-204
- Previc, F.H. (2009). The dopaminergic mind in human evolution and history. New York: Cambridge University Press.
- Previc, F.H. (2011). Dopamine, altered consciousness, and distant space with special reference to shamanic ecstasy. In E. Cardona & M. Winkelman (eds.), Altering consciousness: Multidisciplinary perspectives (Vol. 1), pp. 43-60. Santa Barbara, CA: ABC-CLIO, LLC.
- Previc, Fred H (2006). "The role of the extrapersonal brain systems in religious activity". Consciousness and Cognition. 15 (3): 500–39. doi:10.1016/j.concog.2005.09.009. PMID 16439158.
- Previc, F. H. (2006). "The role of the extrapersoal brain systems in religious activity". Consciousness and Cognition. 15 (3): 500–539. doi:10.1016/j.concog.2005.09.009. PMID 16439158.
- Culotta, Elizabeth (6 November 2009). "On the Origin of Religion". Science. 326 (5954): 784–787. doi:10.1126/science.326_784. PMID 19892955.
- Elephants may pay homage to the dead[unreliable source?]
- Greenspan, Stanley (2006). How Symbols, Language, and Intelligence Evolved from Early Primates to Modern Human. Cambridge, MA: Da Capo Press. ISBN 978-0-306-81449-5.
- "The Neanderthal dead:exploring mortuary variability in Middle Palaeolithic Eurasia" (PDF). Archived from the original (PDF) on 2008-09-10.[clarification needed]
- "FindArticles.com - CBSi". findarticles.com. Retrieved 20 March 2018.
- "BBC article on the Neanderthals".
Neanderthals buried their dead, and one burial at Shanidar in Iraq was accompanied by grave goods in the form of plants. All of the plants are used in recent times for medicinal purposes, and it seems likely that the Neanderthals also used them in this way and buried them with their dead for the same reason. Grave goods are an archaeological marker of belief in an afterlife, so Neanderthals may well have had some form of religious belief.[unreliable source?]
- . Uniquely Human page 163
- Rossano, Matt (2009). The African Interregnum: The "Where," "When," and "Why" of the Evolution of Religion (PDF). The Frontiers Collection. pp. 127–141. doi:10.1007/978-3-642-00128-4_9. ISBN 978-3-642-00127-7.
- Symbolism and the Supernatural[unreliable source?]
- "Human Uniqueness and Symbolization". Archived from the original on 2009-05-27. Retrieved 2008-08-24.
This 'coding of the non-visible' through abstract, symbolic thought, enabled also our early human ancestors to argue and hold beliefs in abstract terms. In fact, the concept of God itself follows from the ability to abstract and conceive of 'person'
Rossano, Matt (2007). "The Religious Mind and the Evolution of Religion" (PDF). Cite journal requires
- Diamond, Jared (1997). "Chapter 14, From Egalitarianism to Kleptocracy". Guns Germs and Steel. New York, NY: Norton. p. 277. ISBN 978-0-393-03891-0.
- Norenzayan, A.; Shariff, A. F. (2008). "The origin and evolution of religious prosociality". Science. 322 (5898): 58–62. CiteSeerX 10.1.1.659.6887. doi:10.1126/science.1158757. PMID 18832637.
- Budge, Wallis (1997). An Introduction to Ancient Egyptian Literature. Mineola, N.Y.: Dover Publications. p. 9. ISBN 978-0-486-29502-2.
- Allen, James (2007). The Ancient Egyptian Pyramid Texts. Atlanta, Ga.: Scholars Press. ISBN 978-1-58983-182-7.
- The beginning of religion at the beginning of the Neolithic Archived 2008-09-10 at the Wayback Machine[unreliable source?]
- Pyysiäinen, Ilkka (2004). "Holy Book:The Invention of writing and religious cognition". Magic, Miracles, and Religion: A Scientist's Perspective. Walnut Creek, CA: AltMira Press. ISBN 978-0-7591-0663-5.
- Objective Knowledge: An Evolutionary Approach, 1972, Rev. ed., 1979, ISBN 0-19-875024-2
- Pascal Boyer, Religion Explained: The Evolutionary Origins of Religious Thought, New York: Basic Books 2001.
- "Religion as an Evolutionary Organism" with David Sloan Wilson, The Religious Studies Project Podcast Series,
- Robert Wright´s "The Evolution of God"
- Evolutionary Religious Studies at Binghamton University, An introduction to the study of religion from an evolutionary perspective.
- A 1998 speech at Biota 2 by Douglas Adams on the on YouTube
- Wilhelm Schmidt and the origin of religion – an opposing viewpoint