Every winter, a marvelous spectacle occurs as hundreds of thousands of butterflies travel south across Taiwan in one of the world’s most rare migrations.

For a few fleeting weeks each winter, the famously elusive cats emerge from solitude, calling across the mountains in search of a mate.

For a few fleeting weeks each winter, the famously elusive cats emerge from solitude, calling across the mountains in search of a mate.

Between 1998 and 2009, John Mitani witnessed 18 murders firsthand, and found circumstantial evidence for three more. But no police were ever called, for these killers were all chimpanzees, from the ...

Some species are at their most active in winter, whether they’re flying, feeding, or mating. From elephant seals in ...

The endangered big cats are hanging on in Russia, the first country-wide survey of the animal suggests, while scientists and ...

Decades ago, India’s tigers were on the brink of extinction. Slowly, their numbers have rebounded. But that ecological success has prompted a dire problem—and a race to save many of them from genetic ...

With just over 1,000 mountain gorillas left in the wild, any evidence of reproduction is cause for celebration. But the news out of the Democratic Republic of Congo this week is doubly exciting—a ...

These 10 standout images were among thousands of stunning submissions in National Geographic’s Your Shot Pictures of the Year 2025 challenge. The delicate West Indian seagrape sawfly (Sericoceros ...

A natural experiment in a national park in Patagonia shows how the return of a large predator can reshape an ecosystem. Long absent from Argentinian Patagonia due to over-hunting, pumas have returned ...

The new National Geographic series Pole to Pole ventures deep into the Amazon in search of creatures whose venom may yield new life-saving drugs. In episode 2 of Pole to Pole, Will Smith captures a ...

In the rugged terrain where Mexico and the United States meet, a border wall is just the latest obstacle fragmenting habitats and disrupting migration paths. Here’s how a cadre of conservationists is ...