Scientists have documented same-sex behavior in many animals. Learn what it means, how it varies, and why human labels can mislead.

Artificial intelligence can write you a passable love poem and some people even have romantic feelings towards it. But is the feeling mutual?

Greenland sharks can live for hundreds of years, drifting through some of the coldest and darkest waters on Earth. Once ...

A complex picture of how Neanderthals died out, and the role that modern humans played in their disappearance, is emerging.

Both the UK and US Governments have pledged to end research using animals, but is such a goal realistic? And how might it change medical research? Talha Burki reports.

Noise pollution is affecting bird behaviour across the globe, disrupting everything from courtship songs to the ability to find food and avoid predators, a large-scale new analysis showed on Wednesday ...

Healthbeat reports the resurgence of the New World screwworm threatens U.S. cattle, highlighting the fragility of food ...

Pharmaceuticals that people globally rely on for daily health — including antibiotics, antidepressants and painkillers — are entering ecosystems via wastewater, posing poorly understood risks. Once ...

Understand how this artificial intelligence is revolutionizing the concept of what an autonomous agent can do (and what risks ...

From spraying mates with urine to changing one's sex, these are the most intriguing courtships in the animal kingdom.

Pumas returning to Patagonia have begun hunting mainland penguins that evolved without land predators. Scientists estimate ...

The disappearance of crows is not just about losing a familiar bird. It reflects a broader pattern of urban ecological simplification — cities becoming hostile to unscripted life ...