When is the next leap year? Here are some fascinating leap year facts, along with all the details about why leap day always falls on Feb. 29.

Bats are often misunderstood, but they are among the most fascinating and important mammals on Earth. With over 1,400 species worldwide, they play a vital role in ecosystems, from pollinating plants ...

Journey into prehistory as the article explores seven monstrous serpents that once ruled land and sea. From the colossal ...