An Instagram post about the last two northern white rhinos references a scenario conservationists have warned us about for ...

Find out exactly how big the biggest whale on Earth is and why blue whales can grow so huge when they only eat tiny creatures ...

We can be guilty of thinking that oxygen is a uniquely human need. While all land-dwelling animals breathe oxygen from the ...

Editor’s Note: Nature Notes is a weekly column provided by Gulf Coast Bird Observatory ...

A study suggests menopause gives an evolutionary advantage to some whales. The findings could offer clues about menopause in ...

A visit to the Falkland Islands, where the fearless seabirds navigate the rugged topography with tenacious spunk, shows the ...

Males engage in a two-week-long sex marathon with as many females as they can find. Each frenzied encounter can last up to 14 ...

A finger-length fish has reignited a long-running debate about self-awareness, cognition and how much we’ve underestimated ...

The benefits of sleep may be more universal than we thought. We know it helps clear waste from the brain in humans, and now ...

These "total monsters of fishes" are extinct today, though new clues about their lives come from CT scans and their closest ...

Australian researchers have uncovered how a particular strain of a diarrhea-causing parasite managed to infect more animal ...

To get to the bottom of it, they looked at the fish’s anatomy and physiology and discovered something curious in their gills.