At a glance, alligators and crocodiles look nearly identical. Both are massive reptiles with armored skin, powerful jaws and ...

Filming "Parenthood" meant working with local trackers, scientists, and communities across the globe — from the Babongo ...

NATURE presents the compelling story of a remarkable denizen of the West in Cloud: Wild Stallion of the Rockies. America’s wild horses lead an exhilarating but perilous existence. The climate can be ...

Marine ecologist Alannah Vellacott grew up in a Bahamian subsistence fishing community, where wrestling sharks before sunrise was part of daily life. Now she’s dedicated to conserving these majestic ...

There are 18 species of penguins that live almost exclusively in the Southern Hemisphere, with only one species, the Galápagos penguin, found north of the Equator. Penguins vary in size and weight ...

In 1893, a bounty hunter named Ernest Thompson Seton journeyed to the untamed canyons of New Mexico on a mission to kill a dangerous outlaw. Feared by ranchers throughout the region, the outlaw wasn’t ...

Frogs have been living on this planet for more than 250 million years, and over the centuries, evolved into some of the most wondrous and diverse creatures on earth. Today, however, all their ...

When the gray wolf was eradicated from Yellowstone National Park in the 1920s, more was lost than just the noble and fascinating predator. The park’s entire ecosystem changed. Now, nearly a dozen ...

After weeks of protecting her brood, a spider mother makes the ultimate sacrifice, offering her own body as food.

Kangaroo: a marsupial from the family Macropodidae. Kangaroos belong to the Macropodidae family, which means ‘big foot’ in Latin. This is in reference to the species’ unusually large hind feet. The ...

Eels can be found all over the globe, in fresh and salt water ecosystems alike. But today, risk of over-fishing and the presence of dams and other obstacles that prevent eels from reaching their ...

Ocelots are similar in size to bobcats. Female ocelots weigh 14.5 to 25 pounds, while male ocelots are heavier, weighing 15 to 34 pounds. Ocelots are typically 29 to 39 inches in length, with males ...