Jackson Ryan was CNET's science editor, and a multiple award-winning one at that. Earlier, he'd been a scientist, but he realized he wasn't very happy sitting at a lab bench all day. Science writing, ...

Spinosaurus's powerful, long-boned feet with long, flat claws were probably used for paddling. Its flexible tail could have been used for swimming like in a crocodile. (Davide Bonadonna/University of ...