Some animals do not have red blood like humans. From spiders to octopuses, their copper-rich blue blood helps them survive ...

Cleveland Metroparks Zoo opened its seal and sea lion enclosure more than 40 years ago. Onion has been there since 2016, ...

Far below the ocean’s surface, where sunlight disappears and pressure reaches crushing levels, some of the planet’s strangest ...

When most of us picture the ocean, we imagine turquoise waves, colorful reefs, and shoals of darting fish. But that’s only the surface. Venture deeper, far below the last reach of sunlight, and you ...

Scientists have finally solved a decades-old mystery with the first-ever live encounter of a ginkgo-toothed beaked whale.

Jellyfish and sea anemones are curious creatures: these organisms evolved without a brain and, as scientists discovered only ...

Killing the protected animals may be the only way to stop them from eating too many of the Pacific Northwest’s endangered ...

The blue whale is the largest animal known to have ever lived, reaching lengths of nearly 100 feet and weighing more than 300 ...

After more than four decades, the Cleveland Metroparks Zoo is preparing to say goodbye to its seal and sea lions.

Sleep is one of life’s most universal behaviors. Despite its ubiquity, it’s also one of the most mysterious. Humans spend ...