Who we choose as a partner depends in part on who we find attractive on the outside. Scientists have long wondered whether potential partners can also sense a woman's fertility, for example through subtle changes in her body odor.

Mammals that have evolved more developed brains tend to have a smaller size difference between males and females of that species, according to new research led by the University of Bath and published in Nature Communications.

RIKEN researchers have uncovered how gradual changes in gene-expression patterns drive a cell-fate switch in neural stem cells (NSCs) in mice.

The human eye registers three colors of light: red, green and blue. But pigeons (and many other animal species) can also see a fourth color, ultraviolet.

A pair of paleobiologists at the University of Fribourg and Swiss Institute of Bioinformatics, in Switzerland, working with a colleague from Museo Nacional de Ciencias Naturales, in Spain, has found evidence suggesting that humans were responsible for pro

The Cambrian fossil record indicates that most animal phyla had diversified and inhabited the Earth's oceans approximately 518 million years ago. But even though chordates—the group that includes vertebrates like humans—were part of this early animal div

A team of paleontologists and natural science specialists from the U.K., the U.S. and France reports that ancient fossil evidence uncovered on Scotland's Isle of Skye suggests small mammals living millions of years ago may have had longer developmental p

A new study provides evidence that a spillover of avian influenza from birds to dairy cattle across several U.S. states has now led to mammal-to-mammal transmission—between cows and from cows to cats and a raccoon.

Crave that cup of coffee in the morning? Globally, consumers drink more than 2.2 billion cups daily. Someone grows all that joe: More than 100 million farmers worldwide produce coffee.

The color palette of the birds you see out your window depends on where you live. If you're far from the Equator, most birds tend to have drab colors, but the closer you are to the tropics, you'll probably see more and more colorful feathers.

In a move to advance the frontiers of artificial intelligence, the Quantitative Biology journal has published a commentary titled "Current Opinions on Large Cellular Models," highlighting the cutting-edge developments in the field of large cellu

At the turn of the millennium, gray wolves returned to Germany after 150 years and subsequently established territories in many parts of the country. But coexistence harbors challenges—for both humans and animals. Since 2006, almost all gray wolves found