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

Human noise alters bird behavior, raises stress levels, and reduces reproductive success - but reducing noise could help reverse the damage.

Space is full of radiation, which is bad for both babies and non-babies alike, but we also have to worry about how microgravity affects the human body, too.

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

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.

Books & the Arts / In her new book, Alyssa Battistoni explores how nature came to be treated as a supposedly cost-free ...

As private companies race to build orbital habitats and government agencies sketch out Mars timelines, a fundamental biological question remains largely unanswered: can humans safely reproduce in ...

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 ...

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

Fossil and modern wolf teeth show that as winters grow warmer and snow declines, gray wolves are forced to work harder for food.