'Jurassic World': Meet the Most Intelligent Dinosaur of Isla Nublar Island

"Jurassic World" is all set to welcome visitors with 16 types of dinosaurs, including hybrid raptor Indominus Rex, but there are few highly aggressive members who are yet to be trained. In order to alert the viewers, the official website has released the details of three more dinosaurs -- Velociraptor, Pachycephalosaurus and Parasaurolophus.

Velociraptor is one of the most familiar dinosaurs in the park and has always been a fan-favourite. It has a very high aggression index and is always on the hunt with its 15cm razor-sharp claws. The dinosaur is 16-feet-long and weighs around 150 kg. The description of Velociraptor states that it is the most intelligent dinosaur and is yet to be trained for public display. Throughout the last three instalments, it has been the most dangerous creature and it remains to be seen whether Owen Grady (Chris Pratt) will succeed in training the raptor or not.

Pachycephalosaurus is another popular member of Isla Nublar Island. It is known as Thick-Headed Lizard due to its incredible skull with up to 25cm thickness. Although it has small knobs all over its skull and snout, the dinosaur is not dangerous as it only eats fruit and seeds. It weighs about 450 kg and has a medium aggression index.

Parasaurolophus is also a familiar creature as it has appeared in all three movies. It is 39-feet-long and weighs about 2000kg. The large crested, duck-billed dinosaur has a very low aggression index and is known for its elongated tube-like crest. It emits beautiful, haunting cries through the crest.

Apart from these three, Apatosaurus, Ankylosaurus, Edmontosaurus, Mosasaurus, Stegosaurus, Gallimimus, Suchomimus, Baryonyx, Metriacanthosaurus, Pteranodon, Dimorphodon, Microceratus, Triceratops and Tyrannosaurus Rex will also meet fans in June.