Questions tagged [human-evolution]

The study of evolution with a particular focus on questions about the evolution of modern humans.

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Isn't it an evolutionary disadvantage to have a single organ perform so many essential functions?

This is in reference to the human liver, responsible for not only the production of bile, but also the filtration of blood, metabolization of drugs, detoxification and so on. Liver failure is often ...
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278 views

Sex and human's sexual urge.

Why is it necessary for humans to feel pleasure while having sex? Why is it that other animals don't need to experience it? Is it evolutionary ? Why do we mate for pleasure when it's so energy wasting/...
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Why do humans have flat faces, as compared to chimps?

Apparently adult, particularly older human faces resemble infantile chimps more tham they resemble any other adult hominid. And adult humans even have as many body hair follicles as infantile chimps. ...
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Does SIV cause AIDS in primates… If not why [closed]

does SIV cause AIDS in primates or have they developed resistance to the virus **
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Are there different species of modern day humans? [duplicate]

I've been watching nature shows on Netflix (Wildest series) and different animals of the same "family" are actually different species. e.g. Asian elephants vs African elephants. Asian elephants are ...
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Disproof mitochondrial eve is 6500 years old

Some creationists, such as Roger Liebi, actively exploit this article: A high observed substitution rate in the human mitochondrial DNA control region (published in Nature Genetics, April 1997). This ...
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2answers
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quadrupedalism in human [closed]

Recently I saw a BBC documentary on a family from a remote village in turkey where one couple has 18 children and out of which 5 are walking on four legs. These children are 28-34 yr old & have ...
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2answers
689 views

Evolution of complex organs [duplicate]

If it evolved, how is a feature selected through a long time span with useless function before the feature becomes complete? For example, an eye is a very complex organ consisting of countless small ...
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89 views

Why do humans need pillow to sleep better? [closed]

As far as I know, no animal sleeps with a pillow/support under their heads. Why then do we need to keep a pillow?
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78 views

Why do we develop addiction? [duplicate]

Recently, while on the train, I saw a person not holding the handrails on purpose. He decided that playing a game with no outcome whatsoever was more important than his safety. In fact, he bumped into ...
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106 views

Has human intelligence evolved as a costly male signal?

In this video at 42:06, Daniel Dennett posits that our big brains are: The human artifice or version of the peacock's tail. Peacocks have sexual dimorphism - it's males who exhibit the costly ...
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EVOLUTION OF MAN QUESTION [closed]

I have a few questions concerning man's origins . Man has 10 vital Organs and support systems. yes or no? Man needs all 10 of his vital Organs or he dies. yes or no? . Either those 10 vital organs ...

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