When Dwayne LaGrou asked Weird Animal Question of the Week what animals have the largest eyes for their body size, we were sure the answer would be guilty-looking dogs. The actual candidates proved to ...

When healthy, anemones look like pink flowers blossoming on rocks and coral, and serve as homes for clownfish, made famous by ...

Nighttime underwater photos show fish hanging out with jellyfish and anemones — perhaps seeking their protection.

What are some animals that give birth to huge numbers of offspring at once?” (Watch a female sea urchin produce millions of eggs.) The mola, or ocean sunfish, looks like an animal cracker someone bit ...

By far the largest ever found of its kind, the spiny fossil predator "would have made enough scampi to feed an army," one ...

The historian Procopius described how a creature called Porphyrios terrified sixth-century sailors for 50 years. But what was ...

While sharks have been found with albinism and xanthism, this pale-eyed, gold-skinned shark is the first nurse shark documented with both traits, according to the new paper. Experts who spoke with ...

For more than 60 million years, penguins of all kinds—including the opportunistic Magellanic penguin—have been driven by an evolutionary urge to reach beyond their boundaries. Today, many are ...

From historic Everest summits to Jane Goodall’s chimpanzee research, National Geographic magazine and its famed covers have ...