Human testicles are much smaller, in proportion, to some of our primate cousins. Evolution can tell us why. But the size of ...

It's not easy to look at a sea spider and see an animal so representative of its kind that it may help scientists sort out ...

What can a tiny wasp with a rather gruesome parasitic life cycle teach us about evolution, behavior and human developmental ...

When Charles Darwin first proposed how evolution works in 1859, it seemed plausible. Tiny changes stack up over time, ...

It is why life takes "such endless forms most beautiful and wonderful," as British biologist Charles Darwin wrote in his famous 1859 book "On the Origin of Species."You can thank evolution for the ...

Documenting the rapid evolution of species in natural settings turns Darwin’s “mystery of mysteries” into a real-time scientific adventure. And while Reznick has succeeded in watching evolution happen ...

Divergent evolution is the opposite of convergent evolution. Divergent evolution occurs when two species share a common ancestor and evolve one or more characteristics that make them different to each ...

Some species have easily observable traits, such as social dominance or coloration, that identify males that females find particularly attractive. ... Evolution. 2004;58(3):665-669. Poli F, et al.

We often see the results of evolution, but not the process directly. Now, scientists have witnessed evolution unfolding in real time, as two similar lizard species encounter each other for the ...

Charles Darwin's theory of evolution by natural selection made us rethink our place in the world. The idea that humans shared a common ancestor with apes was a challenge to the foundations of ...

Inner ear of extinct ape species is overlooked aspect of human bipedal evolution, study finds Described by scientists as a "bony labyrinth," the inner ear provides many clues as to the origin of ...

“This is one of the very first papers to comprehensively show the role of mate selection decisions in the evolution of new species,” said Rebecca Safran, the paper’s senior author and professor in the ...