Paleontologists have determined that ray-finned fish - the world's most diverse vertebrates - began their dominance in the oceans 66 million years ago after the mass extinction that wiped out dinosaurs from the Earth.
Using new three dimensional modelling, scientists have found that the giant sauropod dinosaur, Dreadnoughtus, discovered by palaeontologists in South America in 2014, was not as large as thought earlier.
A new species of dinosaur closely related to the Velociraptor, a group of creatures depicted in the movie Jurassic Park, has been identified of possessing a keen sense of smell that would have made it a formidable predator.
The notorious carnivore Tyrannosaurus rex had a 'bizarre' vegetarian cousin with a tiny head, long neck and blunt fingers, according to scientists, who say the creature is proving to be an evolutionary jigsaw puzzle.
Many mammals came perilously close to extinction when a massive asteroid hit the earth 66 million years ago, says a study, adding that if a few lucky species did not make it through then mammals may have gone the way of the dinosaurs.
The most ambitious genetic study ever, involving over 200 scientists from across the world and 23 research papers, undertaken on bird evolution has found that almost all modern birds diversified after the dinosaurs became extinct 66 million years ago.