EVERYDAY SCIENCE

Detailed explanation-1: -The research showed that most dinosaurs like Plesiosaurus, Tyrannosaurus rex, Diplodocus and Allosaurus were warm-blooded, but other famous species like Stegosaurus and Triceratops were cold-blooded.

Detailed explanation-2: -Analysis of bones shows they may have had high metabolism A new study of thigh bones from Plesiosaurus, Stegosaurus, Diplodocus, Allosaurus, and modern hummingbirds (illustrated above) posits that the extinct animals were warm blooded, CNN reports.

Detailed explanation-3: -It was once thought that dinosaurs had the same cold-blooded (ectothermic) metabolism as reptiles. In other words, they could not control their body temperatures internally, and so relied on their environment to heat themselves up. And because of this, they grew and moved slowly.

Detailed explanation-4: -After the dinosaurs died out, nearly 65 million years passed before people appeared on Earth. However, small mammals (including shrew-sized primates) were alive at the time of the dinosaurs.