For the entirety of my career as a journalist covering paleontology, I’ve been wanting to know: What does a dinosaur’s butthole look like? When I wrote My Beloved Brontosaurus, a book about dinosaur biology, the chapter on reproduction required a lot of time imagining the nature of a Jurassic behind; one had yet to be found preserved. Even dinosaur models and sculptures often demur on the point of the dino butt, leaving the terrible lizards with terrible constipation.

Several complete skeletons of the unusual feathered two-fingered dinosaurs were unearthed in the Gobi Desert.

Buyer unknown, but paleontologists worry researchers will lose access

He was hiking with his father in Alberta, Canada, when he stumbled upon the Hadrosaur remains.

The discovery that the badger-like animal lived alongside dinosaurs challenges ideas about mammals.

The 106-million-year-old tracks suggest that other puzzling nearby fossils were also likely made by a bipedal croc ancestor, not a giant pterosaur.

The 10 biggest dinosaurs mistakes

Scary yes or no

Feathered dinosaurs look freaky!

Feather used for sex for dinosaurs??

The real-life fossils belong to a new species of phorusrhacid, giant predators also known as terror birds that once dominated South America.

This is an amazing post-apocalyptic New Zealand dinosaur illustration by Weta concept artist and Dr. Grordbort's creator Greg Broadmore.

An eccentric Australian mining magnate who is building a replica of the ill-fated Titanic has unveiled his latest scheme -- a park of giant robotic dinosaurs. The world's biggest dinosaur exhibit will have 165 life-size animatronic dinosaurs.

Once considered beyond the reach of science, insights into the love lives of these extinct giants are emerging

The studio rolls out the 3D version of Steven Spielberg's 1993 sci-fi adventure on Friday.

Australian mining mogul Clive Palmer wants to establish an island filled with giant, robotic dinosaurs — and that’s not an April Fools’ joke, the AFP reports. Luckily, though, Palmer appears to have moved on from his original dream of cloning a dinosaur and instead has decided to fill his island with giant robotic ones. Perhaps someone finally showed the billionaire Jurassic Park.

Missing since Tuesday...

No bones about it - students at a Bondi school were thrilled to have a prehistoric visitor.

On June 11, 1993, Steven Spielberg's Jurassic Park hit theaters, wowing audiences with its incredibly lifelike depictions of dinosaurs. It grossed $900 million worldwide. Today, the film is being rereleased in 3D, so we're celebrating its 20th anniversary a little early. Here are 20 things you might not have known about Jurassic Park.

Just how quick was the great tyrant lizard, exactly? Experts in biomechanics think she was pretty damn quick – but still probably not as fast as you think.