Dinosaurs took over the Earth after winter of discontent

Dinosaurs are often thought of as tropical animals, but it was actually their adaptation to the cold that saw them inherit the Earth.

With a lava flow in the distance, a primitively feathered theropod dinosaur carries off a mammalian victim during a snowy volcanic winter caused by massive eruptions during the Triassic-Jurassic Extinction. Credit: Painting by Larry Felder.