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

Around 41,000 years ago, Earth’s magnetic field underwent a chaotic shift that temporarily weakened the planet’s natural ...

Imagine a creature that watched dinosaurs rise and fall, endured the shattering impact of asteroids, and quietly survived as ...

The creatures cruised the world’s oceans with features we often associate with marine mammals, such as coats of blubber and ...