LifeNew duck-billed dinosaur was a 'chewing machine' With hundreds of teeth inside short, powerful jaws, the gryposaur could have snacked on tree branches as well as tough foliage 51¶¯Âþ
LifeMammals not such late developers, after all The demise of the dinosaurs led to an evolutionary explosion of modern mammals – or so we thought 51¶¯Âþ