Children can’t get enough ocean animals. But their marine habitat is in trouble. As the ocean’s temperature continue to rise by 0.14°F each decade, sea levels along U.S. coastlines are set to ...

Scientists have documented what might be the first case of friendly interactions between killer whales and smaller cetaceans.

Putting the well-being of animals first should be every photographer’s goal. National Geographic photographers share tips on how they do it. ByMelissa Groo July 31, 2019 •15 min read ...

But millions of years ago, these badlands, in what’s now northern New Mexico, were a coastal swamp in an inland sea, alive with large trees, reptiles, primitive mammals, and meat-chomping dinosaurs.

We humans rely on a suite of cues to recognize our friends, such as their smiles, their voices, or the way they walk. Biologists have known for several decades that dolphins form close friendships ...

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The ultra-rare Wondiwoi tree kangaroo was last recorded by scientists in 1928, and researchers only had drawings like this one to go on. It has now been photographed in a remote New Guinea ...

An adult koala eats a eucalyptus leaf. Joeys can't break down the toxic, fibrous plants on their own yet. Photograph By David Marks/National Geographic ByLiz Langley June 5, 2025 ...

If they’re lucky, a gray dolphin with a rounded head and smirk appears. These are Irrawaddy dolphins—social, intelligent mammals that have fished alongside humans for generations.

Uncover the untold love story of astronaut Sally Ride. "Sally" premieres June 16 on National Geographic and the next day on Hulu and Disney+.

The shift from lizard-like sprawl to upright walking in mammals wasn’t a smooth climb up the evolutionary ladder. Instead, it ...