Dogs have lived beside people for thousands of years, but modern breeds tell only the newest part of that history. Today, ...

Summer rain over India and the plankton blooms that feed fish in the Arabian Sea do not answer to the same sun. Rain over the ...

Today's Image of the Day from NASA's Jet Propulsion Laboratory shows a landscape on Mars unlike anything the Curiosity rover ...

Fever is a familiar part of illness in people and many other animals. Raising body temperature can help the body respond to infection, but animals that depend ...

Wind changes odor signals as they travel through the air by removing some fast changes, spreading existing patterns, and creating new ones. Smell rarely moves through outdoor air as a steady stream.

Orangutans are known for living more solitary lives than other great apes. Adult female orangutans usually travel through the ...

Life on Earth may have started twice. Bacteria and archaea, the two oldest branches of living things, each finished the ...

At a solar farm beside Volkswagen Poznań’s factory in Września, western Poland, the maintenance crew now includes a flock.

Most people assume that only modern humans, Homo sapiens, bury and honor their dead in ritualistic ceremonies. Yet the oldest ...

Northern American mammals settled into Mexico about 10 million years ago, long before any land bridge had formed. Almost none ...

A heat wave does not land on a city the same way for everyone in it. Two people can check the same forecast and end up living ...

A scuba diver in trouble takes faster breaths and uses up air sooner. The only person close enough to notice is the dive ...