Study confirms evolutionary link between social structure and selfishness
One of nature's most prolific cannibals could be hiding in your pantry, and biologists have used it to show how social structure affects the evolution of selfish behavior.
One of nature's most prolific cannibals could be hiding in your pantry, and biologists have used it to show how social structure affects the evolution of selfish behavior.
Evolution
Mar 25, 2021
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When early humans, including our species, ate their own kind it was more likely for ritual purposes than for a nourishing meal, according to an unusual study released Thursday.
Archaeology
Apr 6, 2017
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When a female praying mantis bites the head off her sexual partner, it is probably not out of anger.
Plants & Animals
Jun 29, 2016
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(Phys.org) —A pair of researchers from the University of Edinburgh has found that a certain type of beetle mother engages in offspring cannibalism when pestered too much. In their paper published in Behavioral Ecology, ...
As you bite into a chocolate bunny or egg this weekend, consider this: rabbits often eat their own young, and hens their own eggs.
Plants & Animals
Apr 16, 2019
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(PhysOrg.com) -- Archaeologists studying a 7,000-year-old site in what is now south-west Germany have found evidence suggesting that more than 500 people may have been the victims of cannibalism.
Many animals go to great lengths to ensure the survival of their offspring - yet some species actually eat some or all of their babies. Nor is there always an obvious explanation – like a food shortage – for such filial ...
Evolution
Feb 10, 2016
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Here's the good news: you are a male and you are allowed to have sex, at most, twice in your life. If that's the good news -- you may well ask -- what's the bad news? It's this: if you copulate for longer than 10 seconds, ...
Plants & Animals
Apr 20, 2010
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(PhysOrg.com) -- 66 million years ago, the fearsome, meat-eating dinosaur Majungasaurus crenatissimus prowled the semi-arid lowlands of Madagascar. Its powerful jaws bristled with bladelike teeth, and its strong legs terminated ...
Archaeology
Jan 11, 2012
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After two decades of examining a microscopic algae-eater that lives in a lake in Norway, scientists on Thursday declared it to be one of the world's oldest living organisms and man's remotest relative.
Cell & Microbiology
Apr 26, 2012
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Cannibalism (from Caníbales, the Spanish name for the Carib people, a West Indies tribe formerly well known for their practice of cannibalism) is the act or practice of humans eating the flesh of other human beings. It is also called anthropophagy. A person who practices cannibalism is called a cannibal.
While the expression "cannibalism" has origins in the act of humans eating other humans, it has extended into zoology to mean the act of any animal consuming members of its own type or kind, including the consumption of mates.
A related word, "cannibalize" (from which "cannibalization" is derived), has several meanings which are metaphorically derived from cannibalism and originally referred to the reuse of military parts. In manufacturing, it can refer to reuse of salvageable parts. In marketing, it may refer to the loss of a product's market share to another product from the same company. In publishing, it can mean drawing on material from another source.
Cannibalism was widespread in the past among humans in many parts of the world, continuing into the 19th century in some isolated South Pacific cultures, and to the present day in parts of tropical Africa. In a few cases in insular Melanesia, indigenous flesh-markets existed. Fiji was once known as the 'Cannibal Isles'. Cannibalism has been well documented around the world, from Fiji to the Amazon Basin to the Congo to Māori New Zealand. Neanderthals are believed to have practiced cannibalism, and they may have been eaten by modern humans.
Cannibalism has recently been both practiced and fiercely condemned in several wars, especially in Liberia and Congo. Today, the Korowai are one of very few tribes still believed to eat human flesh as a cultural practice. It is also still known to be practiced as a ritual and in war in various Melanesian tribes. Historically, allegations of cannibalism were used by the colonial powers to justify the enslavement of what were seen as primitive peoples; cannibalism has been said to test the bounds of cultural relativism as it challenges anthropologists "to define what is or is not beyond the pale of acceptable human behavior". Anthropophagy is an uncommon act that is not illegal in most US states nor in most countries. People who eat human flesh are usually charged with crimes not relating to anthropophagy, such as murder or desecration of a body.
Cannibalism has been occasionally practiced as a last resort by people suffering from famine. Occasionally it has occurred in modern times. A famous example is the crash of Uruguayan Air Force Flight 571, after which some survivors ate the bodies of dead passengers. Also, some mentally ill individuals obsess about eating others and actually do so, such as Jeffrey Dahmer and Albert Fish. There is a resistance to formally labelling cannibalism as a mental disorder.
The theme of cannibalism has been featured in religion, mythology, fairy stories and in works of art; for example, cannibalism has been depicted in The Raft of the Medusa by the French lithographer Théodore Géricault in 1819. It has been satirized in popular culture, as in Monty Python's Lifeboat sketch.
This text uses material from Wikipedia, licensed under CC BY-SA