With the release of Jurassic World, dinosaur toys are everywhere, and some of them are really questionable. Mashable wondered what an expert would have to say about their scientific accuracy. So Mashable asked Dr. Paul Olsen, a Columbia University professor who’s taught a course about dinosaurs for 30 years and has traveled around the world studying them, to share his thoughts on a plethora of plastic dinos. In the video, viewers learn most toy manufacturers commit “dinosaur sins” such as creating dinos that lack feathers, have the wrong number of toes and make really unimaginative sounds. Others are just total BS. Hear that, dinosaur toy makers? Time to shape up.