Technically, your heart isn’t made of gold. And don't wear it in on your sleeve—you’ll make a mess. Here are 11 scientific ...

Sir David Attenborough reveals how mammals have conquered the Earth. From the tiny Etruscan shrew to the giant blue whale, Mammals will reveal the secrets of their success, and how their winning ...

The shrew—the animal namesake of bad-tempered women—is the smallest but fiercest and most voraciously carnivorous of all mammals. The brown, beady-eyed, two-to four-inch creature looks like a ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Momentarily pausing ...

A rare species of shrew was just photographed in California for the first time in history in an exciting discovery for natural science. But the snaps weren't taken by professional researchers or ...

Vishal Subramanyan and Prakrit Jain had never even heard of the rare shrew they would soon spend months chasing. The students were both in the same mammalogy class at the University of California, ...

It was finally ready for its close-up. The rare Mount Lyell shrew was recently photographed for the first time by a group of college students. The pointy-nosed, beady-eyed, greyish-brown creature ...

This Mount Lyell shrew is ready for his close-up – finally. Well over a century since its discovery, this tiny never-before-pictured mammal has been photographed alive. The pointy-nosed shrew ...

If you’re not a biologist, the Mount Lyell shrew looks similar to other shrews that occupy the Sierra Nevada. It’s a small, grayish brown mammal with a pointy nose. Aside from its size ...