A turning point in their evolution was the development of larger brains, which in turn led to changes in the size and shape of their skulls. New research from the University of Chicago and ...

Spinosaurus is unique among predatory dinosaurs in that it was semi-aquatic and had adapted to eating fish. You can see in the picture above how similar its skull shape was to a modern crocodile.

New research shows how physical changes in the skull affected the mechanics of the way birds move and use their beaks to eat and explore their habitats -- adaptations that helped them evolve into ...

Spinosaurus' skull sets it apart from other predators and gives us a good idea of its hunting method.

“Because the skulls of all spinosaurus are so specialized for fish-catching, it’s surprising to see such ‘non-specialized’ brains,” said contributing author Dr. Darren Naish. “But the ...