Male green treefrogs attract mates with loud calls, but new research shows parasites can subtly change those signals.

The Nashville Zoo announced Thursday that it has welcomed one of the world’s largest rodents to its facilities.

A new study on mayflies of the genus Ecdyonurus illustrates just how multifaceted and surprising reproductive behavior in ...

Across the U.S. between 1 and 2 million large animals are involved in vehicle collisions each year, according to the Federal Highway Administration.

Alaskan lakes/rivers teem with grizzly bears, moose, seals, whales, sea otters, etc. But beware, know the dangerous ones!

Some animals are born with horns while others shed their antlers each year. But what's the evolutionary purpose?

You might have a love-hate relationship with daylight saving time, but research shows that urban wildlife may stand to benefit ...

Kakapos, which are reclusive and flightless and can live as long as humans, are found only in New Zealand. They feed on the fruit of the rimu tree.

For just one or two nights each spring, spotted salamanders emerge from underground and go in search of vernal mating pools.

There are hundreds of veterinarians in Hawaiʻi but only a relative few specialize in large animals. One of them is Christy Haines, who has worked at the Makawao Veterinary Clinic on Maui since 2021 ...

Three albatross gather on the Falkland Islands, where Francesco Ventura conducts his research. Every other Friday, the Outside/In team answers a listener question about the natural world. In ...