A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment.
Velociraptor (veÂ·locÂ·iÂ·rapÂ·tor) (Speedy Thief) was a small carnivorous dinosaur, well known thanks to Jurassic Park. It was one of the smaller dromaeosaurs, smaller than Utahraptor and Deinonychus. It lived in Mongolia and China during the Late Cretaceous, 75 to 71 million years ago.
Recent research suggests that Velociraptor mongoliensis was a feathered dinosaur. A forelimb fossil discovered in Mongolia showed quill knobs like those found in many modern birds. These telltale features are evidence of where ligaments attached flight feathers to bone and are considered proof that Velociraptor sported a fine feathery coat.