Crocodiles are built for survival and that's how they swam the Atlantic.
Quite apart from the crocodile lore, crocodiles share an interesting physiological feature with marine turtles and other reptiles.
In mammals, the sex of a baby is determined by the chromosomes it inherits from its parents. But, the combination an animal inherits can be quite different.
We may never know if the chicken or the egg came first, but scientists have discovered a fossil that sheds light on how turtles got their shells.
Did dinosaurs take an interest in parenting? Find out on this Moment of Science.
When dinosaurs ruled the earth, the Tyrannosaurus Rex ate just about anything it wanted. But did that include other T. Rex?