Some animals living on Earth appear so unusual that they are often compared to aliens. Their shapes, movements, and behaviors challenge common ideas of what life should look like. Scientists explain ...

After nearly 80 years, a long-lost creature thought to have vanished from the Australian landscape has been spotted once ...

Deep within the sea lies another world entirely. It’s a world of complete darkness, where light is absorbed thousands of feet ...

“A rare Mola mola (ocean sunfish) washed up on our shore at Cardiff State Beach today,” San Diego State Lifeguards stated Wednesday via Instagram. “It’s the heaviest bony fish on earth and can weigh ...

In his new National Geographic series Pole to Pole, the actor ventures deep into the Amazon in search of creatures whose ...