Evolution is the process of change in all forms of life over generations, and evolutionary biology is the study of how evolution occurs. The biodiversity of life evolves by means of mutations, genetic drift and natural selection.

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Were people shorter in the middle ages?

In many castles or museums you'll find medieval armor, belonging to a knight. Those are often very small compared to the average human nowadays. I've heard this explained multiple times as being due ...
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Does “The Fossil Record” evidence sufficiently support evolution?

According to Darwin, the absence of intermediate fossil forms “is the most obvious and gravest objection which can be urged against my theory.” What new fossil finds, if any, have occurred since ...
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Demonstrable and repeatable examples of evolution

Are there examples of evolution that can be demonstrated as proof that evolution occurs and is a useful mechanism for making predictions? Some examples that come to mind include: Animal husbandry (...
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What is the commonly accepted mechanism that causes people to experience pareidolia?

I often see cases of pareidolia reported in the news, on blogs, and even here. I think remember reading in Demon Haunted World by Carl Sagan that this had an evolutionary origin (i.e. if you see a ...
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Does DNA add credibility to the theory of evolution?

I have yet to make up my mind regarding the theory of evolution. Whilst doing some reading on dnafish I read that DNA itself provides evidence for the theory of evolution: Yeast, trees, flowers, ...
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Is physical beauty correlated with health?

There is a widespread claim that we use beauty in the selection of a partner as a proxy to their overall health. The idea is that this is an evolutionary adaptation. Are there any studies to confirm ...
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Are the outcomes of evolution too improbable to have occurred in the Earth's lifetime?

Creationist site Creation.som cites a commenter who complains that biologists ignore his arguments: Then I try and help [evolutionists] understand the mathematics and logistics of creation and ...
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Are evolutionary explanations “Just so stories” [closed]

There's a claim that evolutionary explanations are nothin more then "just so stories", that is, for any trait we can find in nature, one could find a way to explain why it's adaptive. For example: ...
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Why do cats and dogs fight?

From our daily experience we know that most of the time cats and dogs are involved in fights rather than in expressions of affection. Is there an evolutionary basis(justification) for this? Why would ...
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Is Tehran suffering from a plague of mutant cat-sized rats?

Today, the local newspaper breathlessly reported on an unusual development in Tehran: TEHRAN has deployed snipers to fight an invasion of hyper-evolved "mutant rats", which officials say grew ...
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Would life not exist on Earth if it was one kilometer closer to, or farther from, the sun?

A lot of my friends (especially creationist ones) tell me that if planet earth was one kilometer closer to the sun, it would heat up too much and life wouldn't exist. On the other hand, if planet ...
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How could Darwin be sure all life has a common origin

I don't recall exactly the words he used, but to the best of my recollection Darwin was quite certain that all living things share a common ancestor. First of all, is this correct? Second, and more ...
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Does homosexuality preserve the species?

From The Huffington Post: For even without a causal link established between homosexuality and population management, the obvious reduction in population growth attributable to homosexuality by ...
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Are women more sensitive to high-pitched noises than men?

On Season 1, Episode 2 of The Big Bang Theory, characters Sheldon and Leonard are sneaking around in Penny's room. In order not to wake her, Sheldon warns Leonard to be careful to make pitched noises. ...
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Is human evolution slowing down?

It has been said that the human race has basically hit a point where any further evolution is essentially unnecessary: protection from most harmful diseases is provided by medicine, we have very few ...
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Does the theory of evolution contradict the second law of thermodynamics?

I was reading about the Law of Thermodynamics, and the Second Law of Thermodynamics really interested me because the Law apparently stated that in any isolated system, the entropy of that system will ...
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Has natural occuring genetic insertion ever been observed in direct offspring of some organism?

Maybe this is somewhat of an ignorant question of me, and in all honesty I haven't tried very hard to find what I'm looking for1, but I keep hearing the argument that "information" can never be added ...
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Are apes our ancestors?

I've heard that apes are our ancestors (ranging from chimpanzee to bonobo to gorilla). Is this true? Can we live side-by-side with our ancestors? I always thought we used to have a common ancestor ...
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Is T. Rex more similar to sparrows than to stegosaurus?

From XKCD: XKCD comic 1211 claims that the anatomy of sparrows and T. Rex are more similar than those of T. rex and stegosaurus. While it looks like neither T. rex nor sparrows would be any good at ...
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Does the Catholic church accept evolution?

In his 2007 video 1st Foundational Falsehood of Creationism the YouTuber AronRa claims [Catholicism and Orthodoxy] have stated support of evolution and denounced creationism. Pope Benedict ...
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Do peer-reviewed scientific journals reject articles that propose intelligent design, regardless of merit, as a means to control the literature?

Members of the intelligent design (ID) movement, when responding to arguments that journal articles don't support ID, claim that peer-reviewed scientific journals typically reject articles critical of ...
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420 views

Did Chinese philosopher “Tson Tse” anticipate key ideas of evolution 2500 years ago?

In his famous book Glimpses of World History, Jawaharlal Nehru writes (p. 610, Penguin 2004 Edition, emphasis mine): As I have been telling you of Darwin's theory of the origin of species, it ...
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Do (some) Louisiana schools teach the Loch Ness Monster as evidence for creationism?

A came across this article on addictinginfo.org. It quotes from this article in the Scotland Herald, describing Accelerated Christian Education in Louisiana. I quote: One ACE textbook – Biology ...
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Is the theory of evolution disproved by bats?

For some species, the Darwin's theory of evolution makes perfect sense to me. I can easily imagine how, for example, the giraffe has evolved to its current appearance: the natural selection was ...
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Are humans the only species to have permanently enlarged breast?

According to this did you know? blog humans are the only species to have permanently enlarged breast. It quotes an article from the Guardian but the article does not contain that specific fact.
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Did Lucretius write about evolution and natural selection?

Robert Krulwich of NPR claims that Professor Stephen Greenblatt claims that Lucretius (around 99-55BC) said: ... moving randomly through space, like dust motes in a sunbeam, colliding, hooking ...
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Have we observed evolution through natural selection in areas of high child/youth mortality?

It has been suggested to me that human evolution has slowed or halted because natural selection no longer "weeds out the weak" before they get a chance to reproduce. However, there are still places ...
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Is Lamarckian evolution still considered credible?

I had thought that Lamarckian evolution had been essentially dismissed in favour of Darwinian evolution. Lamarckian evolution as I understand it is essentially the idea that the traits an organism ...
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How much traces lasting a million years would human civilization leave after perishing?

While there is a nice webcomic with a similar theme, I'm talking about a hopefully more reliable claim: The Science of Discworld alternates between chapters written by fantasy author Terry Pratchett ...
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Did Patrick Matthew came up with the theory of natural selection before Charles Darwin?

Daniel Engber writes in Who Will Debunk The Debunkers?: Sutton thinks that story has it wrong, that natural selection wasn’t an idea in need of a “great man” to propagate it. After all his months ...
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Are most people right handed, because they had to protect their heart?

In this thesis, the following explanation was given for why the majority of people are right handed: Primitive hunters needed to protect their most vital organ of the body (the heart), so their ...
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Do prions qualify as living and, if so, do they argue for a second origin of life? [closed]

Not sure if there's a better Stack Exchange for this, but How could Darwin be sure all life has a common origin triggered this question. As I understand it, prions are pretty much protein-based ...
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Is intelligence declining due to the lack of selection pressure?

I have read lately that human intelligence has already peaked and that it will slowly decline over time because humans are no longer naturally selected for intelligence (Darwin award winners aside). ...
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Is cancer a trade off to enable faster evolution?

In an interview on pop-sci magazine "The Scientist", Dr. Robert Austin from Princeton is asserting that: It’s a tradeoff, he says, for the rapid evolution our species has leveraged to become the ...
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Does natural selection have less impact on modern humans?

This question is motivated by two other questions that hinged on this one but did not explicitly ask the question. Is intelligence declining due to the lack of selection pressure? Is human evolution ...
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Is humanity becoming more genetically homogenous?

According to Wikipedia: The race of the future is a theoretical composite race which will result from ongoing racial admixture. That article presents two contradictory views regarding whether ...
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Do bacteria become immune to antibiotics if you don't complete your course of them?

Every time a doctor gives you antibiotics, they ask you to finish all of them, even if you might feel fine after taking only part of the package. Most searches on Google says that if I don't finish ...
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Are wisdom teeth disappearing?

I was sent an article (am a bit of a future evolution fan), entitled 5 Signs Humans Are Still Evolving, from a website called "MentalFloss" - and as it is not peer-reviewed, I am a bit dubious of its ...
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Does evolutionary psychology predict that humans will be more altruistic to those who are similar?

I read that in "The Red Queen" by Matt Ridley. Racism and xenophobes are samples of these behavior. Is this true? And if it's true, how does that work? For example. Evolutionary psychology predict ...
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Is there a disparity between the number of US schools teaching creationism and the population's desire?

Concerning Evolution and Creation being taught in public schools, is there a disparity between the majority opinion and the extent that each is taught? This web site says: Fifty studies were ...
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Are humans descended from chimp-pig hybrids?

Geneticist Dr. Eugene McCarthy claims that humans have descended from hybrids of pigs and chimpanzees: A 2013 Phys.Org article explained: he has amassed an impressive body of evidence suggesting ...
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Do marine invertebrates outnumber plants in the fossil record 19:1?

I found this claim in this Creationist YouTube video. 95% of all fossils are marine invertebrates. Of the remaining 5%, 95% are algae and plant fossils. 95% of the remaining 0.25% are other ...
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Are the origins of Rh- blood unexplained by science?

Researcher Daniel Wilks claims: Blood type O is a universal blood type. Blood types are further broken down into two groups, negative and positive. This is called the RH factor. The RH factor is ...
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Does speciation occur?

I am not questioning the theory of comment descent, but I am skeptical about the evolutionary mechanisms proposed for speciation. Have we ever observed in detail how speciation occurs? We can take ...
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Does the time for evolution make sense? [closed]

It is claimed that there has been sufficient time for life to evolve on Earth from a Last Universal Ancestor into its present state, based on the current theory of natural selection. Is this true? ...
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Did/do women select for protectiveness in their mates?

This claim is made by Smuts and Gubernick: An additional mechanism shaping female preference for stronger mates could have been the increased survival benefits conveyed to offspring. Smuts and ...
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Can phobias be genetic, but created in one generation and not by natural selection?

I have seen this article floating around http://www.telegraph.co.uk/science/science-news/10486479/Phobias-may-be-memories-passed-down-in-genes-from-ancestors.html Pretty much they state that if a ...
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Are red-heads going extinct?

There is a widely-held belief that there will no longer be humans with red hair in the future (sometimes cited by 2060 or 2100). For example, these Facebook groups: "Save the ginger kids, there ...
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Are there any geological periods found on top of each other that have dinosaurs of that period with in them? [closed]

In diagrams, It is common to depict geological periods to be directly on top of each other with fossils of that period within them. When looking for evidence of this, I have only found examples of ...
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Did the appendix evolve independently in marsupial and placental mammals?

According to this, the "evolutionists" believe the appendix to have evolved twice, independently. Incidentally, the appendix seems to pose other challenges for evolutionary arguments. As it is ...