Jurassic Park with cats instead of "velociraptors"

The trailer for the new Jurassic Park film "Jurassic World" has just been released, and it's awesome. (Hello, Chris Pratt-as-dinosaur-hunter!) If you haven't seen it yet, you need to.

But since everyone else is sharing and posting the trailer, I thought I'd share something Jurassic Park-related but a little bit ... different.

David Mizejewski is a naturalist and media personality with the National Wildlife Federation.

Little-known dinosaurs that should make an appearance in Jurassic Park 4

Brian Switek does fantastic work writing about dinosaurs. I haven't finished his new book, My Beloved Brontosaurus , just yet, but it's shaping up to be fantastic — all about the slow, lumbering dinosaurs of our childhoods and how our conception of them morphed into something totally different. He's going to be on Science Friday on, well, Friday. And he's written them a post about four distinctive but seldom-discussed dinosaurs that should really get their 15 minutes of fame.