Earth was once ruled by giant reptiles. Tyrannosaurus rex, the king of tyrant lizards, crushed bones. Spinosaurus hunted in ...

LOS ANGELES -- In celebration of Earth Month, National Geographic is giving viewers a never-before-seen look at the world of penguins! "If you follow a penguin just for a day, you will realize ...

A new fossil discovery is shedding light on a previously unknown Tyrannosaur species. This close relative of the Tyrannosaurus rex was found in Mexico, revealing intriguing differences between the ...