In the museum’s basement, we find more skeletal megafauna. Take the charming Giant Ground Sloth: looking at its paws and ...

Sloths live in perpetual slow motion in the tropical rainforests of Central and South America today. But Roughly 10,000 years ago, a family of ancient, giant relatives would roam any number of ...

The fossilized leg bone of the terror bird went unidentified for almost 20 years. Nearly 12 million years ago, the largest ...

Matheus Fernandes In a dusty rock shelter in Santa Elina, Brazil, two layers of giant ground sloth bones have been swallowed into the earth. The oldest sloth fossils in the deposit date back ...

Natural Trap Cave near Lovell is one of the best Ice Age fossil sites in the world, but its lack of saber-toothed cats and giant ground sloths ...

From fearsome land mammals to deadly sea creatures, we rank the most terrifying animals that once roamed Earth.

Nearly 12,600 years ago, during the Late Pleistocene era, a group of humans hunted and killed a giant ground sloth in Argentina, then left the animal's bones behind, along with their butchering knife.

The extinct giant ground sloths were some of the only mammals that had digestive systems large enough to process the huge avocado seeds whole. They feasted on the fruit and then dispersed the ...

Nearly 27,000 years ago, a giant ground sloth traveled across a barren, arid landscape in what is now Belize, munching on grassy vegetation and searching for water. A nearby sinkhole may have ...

Researchers including a Johns Hopkins University evolutionary biologist report they have analyzed a fossil of an extinct ...

Here are five pairs from the world of animated films that you should revisit to celebrate the day whether you are an adult or ...