Snow flies have adapted to keep running in subzero temperatures, but their time is running out.

This is what happens when you put your launchpad near a wildlife refuge.

And four other neuroscience patients who changed how we think about the brain, and ourselves.

When time is measured in 10-million-year blocks, the lines between ecosystems and animals that would never have coexisted can get blurry.

Twenty years after it was first published, Kirsten Bakis’s extraordinary novel Lives of the Monster Dogs still has a lot to say about the entwined destinies of animals and humans.

As machines fill the skies, they meet resistance from the animals who already live there.

How do owners—and fans—cope with celebrity animals’ later years?

Valentine’s Day among humans and animals, family reunions at an Indian border fence, an icy dinosaur in Latvia, snow kayaking in Estonia, International Condom Day in Mexico City, and much more