Roughly half a million years ago, a group of armadillo-like mammals, horses, and sloths met their end in a sinkhole in what ...

At age 75, Vadevino Alano keeps up a brisk pace as he strides through the forest on the way to the Armadillo’s Den — a spectacular cave in southern Brazil. When he reaches the cave’s opening, Alano is ...

New images from the North Sea show never-before-seen landforms that were carved by a single, colossal ice sheet 1 million ...

For a long time, scientists believed the first humans to arrive in the Americas soon killed off these giant ground sloths through ... with the end of the last Ice Age, a time when an ice-free ...

This illustration provided by researchers depicts a person carving an osteoderm from a giant sloth in Brazil about ... coincide with the end of the last Ice Age, a time when an ice-free corridor ...