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

“A New Tree of Life” (2016); (B) a simplified version showing other major divisions. Incidentally, not reproducing doesn’t mean you’re not involved in the evolutionary process. Non-reproductive ...

The great but grumpy biologist J.B.S. Haldane was once asked what evidence would disprove evolution, whereupon he growled: “Fossil rabbits in the Precambrian.” He was referring to the ...

Polyploidy, or whole-genome duplication (WGD), is a major mechanism of genome evolution across the tree of life and is ...

The rise of genome sequencing, at the turn of the twenty-first century, seemed to bring Darwin’s dream within reach. “It is now realistic to conceive of reconstructing the entire Tree of Life ...

The tree of life maps out the relationships between all living things, and it's in constant flux. ... Human Evolution Human evolution: Facts about the past 300,000 years of Homo sapiens.

Evolution keeps making crabs. In fact, it's happened so often that there's a special scientific term for an organism turning crab-like: carcinization. But how many times has it happened, and why?

In Charles Darwin’s world-changing work On the Origin of Species, the naturalist make use of the millennia-old metaphor in which all life is represented by a tree.He writes that “the ...

Scientists studied rare butterfly fossils and collected DNA from nearly 2,300 species to create the ultimate tree of life and learn where butterflies originated when they first appeared on Earth ...

Birds are the most diverse land vertebrate on the planet, and now scientists have constructed a complete evolutionary tree of the 11,000 or so known species. This data came from hundreds of ...

Scientists studied rare butterfly fossils and collected DNA from nearly 2,300 species to create the ultimate tree of life and learn where butterflies originated when they first appeared on Earth ...