In this episode, we rank the largest land mammals to have ever existed using estimated maximum weights, comparing each giant ...

Argentinosaurus is often described as the largest land animal to ever exist, but its true size remains scientifically uncertain. Fragmentary fossils suggest a creature so massive that simple movement, ...

Add Yahoo as a preferred source to see more of our stories on Google. For centuries, massive teeth found along coastlines puzzled scientists and naturalists. Researchers later discovered these ...

The adventurous German director’s latest documentary follows an explorer searching for gargantuan elephants in southwestern ...

The first trailer for Toy Story 5 solves the mystery of how Woody returns to this world, and does so in the most direct way ...

National Geographic's new documentary film, "Ghost Elephants," follows explorer Steve Boyes' journey to locating the largest ...

Long before today’s tree-dwelling sloths, a 4-ton giant roamed South America — and it may have stood and fought like a bear.

"Our goal is to use what we learn from this collared animal to work toward recovering the population in the long term." ...

Sleeping for only a few minutes at a time? While this might sound like a true ordeal for humans, it's no problem for some ...

A deep-sea camera captured the first-ever shark recorded in Antarctic waters - a 10- to 13-foot sleeper shark swimming 1,608 feet below the surface.