We learned at school that there are five different classes of animals. These are mammals, birds, fish, reptiles and amphibians. However, this knowledge, long enshrined in textbooks, does not seem to ...

Meet the Cryolophosaurus, a 21-foot predator of the Early Jurassic that looked like a T-Rex with feathers! The animal’s distinctive crest and feathery coat set it apart from other dinosaurs. Watch ...