The deep sea is a unique "evolutionary engine," with one of the richest and most unexplored sources of genetic diversity on ...

Ground squirrel droppings, preserved for millennia in the Yukon's deep permafrost, have yielded an enormous amount of ...

Every human will, at least once, experience a “head spin.” Not many of us, however, will know the delicate and complex ...

A new study by plant biologists at the University of California, Santa Cruz, challenges a longstanding idea that stems from ...

New fossil discoveries are reshaping scientists’ understanding of a pivotal chapter in human evolution, revealing that several human ancestor lineages lived side by side nearly 3 million years ago.

The discovery of Typhlichthys styx shows that cave-adapted species can continue evolving and splitting into new species, with ...

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 studies ...

For most of human history, green eyes didn’t exist. Understanding why they do now means rethinking what we know about evolution itself.

A new book draws on ethnography, neurobiology, and primatology to argue that our reduced sleep is not a byproduct of modern ...