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

Animals may not celebrate Valentine’s Day, but courtship rituals, pair bonding and fierce competition shape love in the wild.

If you’d like to submit a question to the Outside/In team, you can record it as a voice memo on your smartphone and send it to outsidein@nhpr.org. You can also leave a message on our hotline, 1-844-GO ...

The deep sea anglerfish lives in a place where sunlight never reaches and pressure crushes almost everything. In that ...

The Queen gets to tell everyone what to do, and she chooses a few males to breed with, we believe,” says Kerns. “However, she can have one of the largest litters of any mammals, over 30 babies at a ...

Urban expansion brings wildlife closer to people, creating new pathways for viruses to spread from animals into human communities.

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

Frigatebirds can remain airborne for days at a time without landing. Here’s how they rest while flying, according to ...

A new 17-year study of loggerhead sea turtles nesting in Cabo Verde reveals exactly this tension. Researchers from Queen Mary ...

At SLAC National Accelerator Laboratory in Menlo Park, scientists from across the globe are using advanced X-rays to find a long-lost map of the galaxy by ancient Greek astronomer Hipparchus.

California’s Department of Fish and Wildlife decided to increase tag limits on black bears so that hunters can kill two in a ...

Many residents, who feel light provides them safety, are not happy with the decision, but officials assert that this is the ...