There are nearly 20,000 butterfly species divided into six families. They are spread across every continent except for ...

The concept isn’t hypothetical. Tephra layers in Icelandic peat cores show that eruptions soared six-fold between 12,000 and ...

What’s your guess for Earth’s most isolated island? It’s not Hawaii. It’s not Fiji. In fact, if you’re thinking beaches, palm ...

A teenager attempting to set a world flight record and raise money for St. Jude Children’s Research Hospital has been ...

Meet the world's 10 largest birds—from ostriches to emperor penguins—and discover where to find these giant species in the wild.

Ancient Antarctic Sea Monster May Have Laid This Football-Size Egg. A 68 million-year-old egg the size of a football — the largest soft-shelled egg on record and the second largest egg ever discovered ...