The Mesozoic Era extinctions formed the world as we know it today. Read about what caused them and which animals survived.

Small fossils show mammals moved to the ground before the dinosaurs vanished. New plants changed habitats, giving better food ...

Chaos Theory's season 3 ending places it in a very specific part of the franchise timeline (and could allow for future appearances).

Chaos Theory centers on Brooklynn’s apparent death, leading to questions about what really happened that night. Building off ...