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

Rio Carnival street party dogs parade as humans protest against pet killers - Dozens of dogs dressed as alligators, fairies ...

Few animals depend on timing as tightly as the kākāpō. This flightless parrot is found only on a few predator-free islands ...

On a remote island in North Macedonia, male Hermann’s tortoises outnumber females 19 to 1, an imbalance driving the ...

This week, researchers reported on a juvenile great white shark caught by fishermen in Spanish Mediterranean waters. China's ...

For millions of us, applying a spritz of perfume is something we do without a second thought - but experts are warning that ...

A NASA image of the snow-dusted Grand Canyon has created a striking optical illusion, making the vast chasm-more than a mile ...

Navalny died after being poisoned with dart frog toxin by Russia, UK says - Britain and its allies said only Russia would have the ‘means, motive and disregard’ to launch such an attack – as his widow ...

Scientists at Michigan State University have uncovered the molecular “switch” that powers sperm for their final, high-speed dash toward an egg. By tracking how sperm use glucose as fuel, the team ...

Like all new parents, Arthur Zey and Chase Popp think their son Dax is the most perfect baby in the world. But they don't ...

The sex study found several scientific factors that are causing people to disconnect from each other in the dating world ...

Here's how the candidates responded to Star-Telegram questions about why they deserve your vote in the March 3 primary.