Animals

A herd of the largest land mammal in North America thrive in the country’s third-most-visited urban park, in the heart of San Francisco.

Even the smallest insect can impact the largest animals.

Just in time for their moment in the sun (or not).

The mini-paratroopers have a new role to play today.

In Ecuador, Satanas the tarantula—named for his feisty attitude—became both teacher and friend to researchers.

Get a peek into what we’re obsessed with right now.

What lurks below doesn’t always stay beneath the sand.

At warm, deep sea springs off Costa Rica's Pacific Coast, throngs of octopus "balls" gather to tend their brood.

When vessels such as the WWII tanker E.M. Clark sink, they begin a second life as habitat for a diverse ecosystem.

A new study shows most people can tune into how chickens are feeling based on their clucks alone.

In 2021, the Dixie Fire burned much of the park. Now, Lassen's recovery offers surprising lessons on resilience.

From everlasting lightning storms to magnificent bioluminescence, these classic episodes will delight and intrigue you.

Get a peek into what we’re obsessed with right now.

Spoiler alert: They’re giant worms.

These mollusks evolved to mosey along at a particularly ponderous pace—the reasons why may surprise you.