A lake in Palau contains a startling surplus of golden medusae.

A semi-wild species has the run of a functioning city.

How an unlikely seagoing species emerged in Montego Bay.

On Louisiana’s Avery Island, a colorful and can-do flower thrives.

No creature on the planet mates quite like this.

Come mating time, the King-of-Saxony male makes a ruckus. Collaboration: Cornell Lab of Ornithology.

The world's only swimming lizard.

A predatory invertebrate strikes from inside its ocean burrow.

An aristocratic pastime involves training, admiring—and almost becoming—a bird of prey.

Underneath a roof of ice, the world’s southernmost mammal takes the plunge.

Discarded shells are shelters for this underwater species in Anilao. Beer cans, too.

A male bird-of-paradise performs a dramatic courtship dance. Collaboration: Cornell Lab of Ornithology.

The giant, noisy summer colony of Quebec’s Gaspé Peninsula.

Will Borneo’s big-nosed, pot-bellied primate swing and swim in the wild for much longer?

In America's first national park, an iconic omnivore roams an extremely varied path.

In winter, a Wyoming town welcomes to the world’s largest gathering of elk.

An encounter with the Serengeti's most endangered species.

Iberia’s indigenous wild goat goes where other four-legged creatures can’t.

Stealthy habits and GPS collars have helped Western Europe’s rarest wildcat hang on.

A bird woos mates with a "bow, walk, pause and waggle." Collaboration: Cornell Lab of Ornithology.

Sichuan’s Anzihe Nature Reserve has more giant pandas per square mile than anywhere else

In the Atlas mountains, the Mediterranean’s only non-human primate species hangs on.