Science has treated same-sex sexual behavior as an “evolutionary conundrum” because it (generally) doesn’t help animals to reproduce, thus ensuring that their genes get passed down and their species ...

Animals more likely to eat their young are those with faster reproductive cycles. “Species that have large broods might be ...

Microbes are everywhere, even inside of our bodies. The gut microbiome has been shown to have a powerful influence on biology, and can even affect the brain. Scientists have been learning more about ...

Dear Dr. Fox: I have an odd question for you. As I was talking to my housemate, we got into the subject of schizophrenia and dementia. I wondered if all mammals can have such problems. And what about ...

Many herbivore animals face salt shortages because plants vary in sodium. This shortage shapes movement, safety, and survival ...

A rare discovery in a Cuban cave has rewritten what we thought we knew about reptile intelligence: the first snake hunters we ...

Less than a week from now, when the sun partially disappears behind Long Island's moon — and entirely in places like upstate New York — many of the Earth's creatures will react to the eclipse. Not all ...

Dogs communicate and express themselves in ways that might seem puzzling to us. Many behaviors that are perfectly normal for ...

Todd M. Freeberg does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

A new study shows that parakeets will test the waters before trying to make friends, a behavior humans can use.

Empathy in animals encompasses a range of processes whereby individuals perceive, share, and respond to the emotional states of conspecifics, often leading to demonstrably prosocial behaviours.

On Aug. 21, 2017, a solar eclipse shrouded The Riverbanks Zoo and Garden in Columbia, South Carolina, in near-total darkness for 2½ minutes. In the time leading up to the darkness, during it, and ...