The Sumatran tiger is the rarest tiger species in the world and is critically endangered in the wild. Native to the islands ...

Every year, gray whales embark on one of nature’s most epic migration journeys. Here’s what we know about it, according to ...

The saola is a real and documented animal, but it remains a mystery to most experts and researchers. A forest-dwelling bovid ...

Imagine an animal that seems to be assembled from various other creatures: it has large eyes, the round body of a rabbit, a rodent’s pointed snout, tiny pig-like hooves, and even fangs like those of a ...

A new species of shrew, Soriculus dexingensis, is discovered in Tibet, raising the number of known shrew species there to six ...

According to most experts, the first mammal was Morganucodon, a small, shrew-like rodent that appeared during the Jurassic Period, approximately 200 million years ago. It weighed a few ounces and ...

A sloth scientist, her tree-climbing BFF, and their dog work to save Costa Rica’s sloth populations. A sloth scientist, her tree-climbing BFF, and their dog work to save Costa Rica’s sloth populations ...

This academic has theorized about what would happen if humans became extinct and reveals who our successor would be.

(CNN) — The story of two of the strangest animals on the planet just got a little stranger, thanks to clues revealed by a lone fossil specimen that scientists now say represents a long-extinct ...

Some animals stop you mid-scroll because their appearance feels almost unreal. Their shapes, colors, and features are not ...