Dinosaurs actually lived on all continents! They even made it to Antartica.

Dinosaurs died out about 65 million years ago. They appeared on the earth about 230 million years ago.

Dinosaur colors are mostly unknown, but some are assumed to have been green and brown. This was so they could hide among trees.

Colorado is called the Stegosaurus State because the first Stegosaurus fossil was found in Morrison. Where's the T-Rex state?

Dinosaurs built nests for their eggs, like birds do. Dinosaur nests or remnants have been discovered by paleontologists.

The first dinosaurs were meat eaters. Later, they developed into plant eaters and omnivores.

Dinosaur is a Greek word. It means "terrible lizard." It was coined by Richard Owen in 1842.

Dinosaur brains were actually smaller than a human baby's. Dolphins and whales have the largest brains!

In general, dinosaurs that walked on two feet were meat eaters. Those that had four legs were plant eaters.

T-Rex had massive back legs, but his two little front legs were three feet long, about the size of human arms. Kinda creepy, actually.

T-Rex teeth were actually six to nine inches long. They could not chew, so they would just swallow their food in whole mouthfuls.

Bipeds are dinosaurs that ran on two legs. Be thankful you never got chased by one - even though you're a biped as well.

Dinosaurs laid eggs. Sometimes the males guarded the eggs.

Plant-eating dinosaurs were herding animals. They traveled in packs for protection.

Many scientists believe that birds are dinosaurs! That's why they argue that dinosaurs aren't extinct - not all of them, anyway.

The Quetzalcoatlus actually had a wingspan of 39 feet! Those are some pretty massive wings!

Nobody actually knows why the stegosaurus had plates on its back! Maybe for protection, for attracting mates, for temperature regulation or for something else entirely.

Dinosaurs lived in the Mesozoic Era. There were three periods in this era: Triassic, Jurassic and Cretaceous.

Some dinosaur skulls are so big they're actually the size of a car! They had little "windows" in their skulls to make them lighter.

The biggest plant eaters actually consumed up to half a ton of food per day. Talk about roughage.

We assume all dinosaurs were massive, but they were actually human-size, for the most part. We don't find many of their bones because bigger bones are fossilized more easily.

The first dinosaurs, in the Triassic period, were actually quite small. They didn't get really big till the Jurassic period.

Scientists actually don't know what the typical dinosaur lifespan was. Some think it could have been as long as 200 years!

Triceratops has the biggest skull. Its skull could grow to more than nine feet long.

The blue whale is actually bigger than any dinosaur. It can measure more than 90 feet long.

Researches believe that dinosaurs shed their skin, but they're not certain. This would make them similar to snakes and lizards.

Dinosaurs would often swallow large rocks. This would help them to grind up food in their bellies.

Dinosaurs contributed to global warming, thanks to their gas. That would be the plant-eaters, mainly.

The cheetah could actually run faster than any dinosaur. But some dinosaurs moved faster than others.

A Brachiosaurus could actually stretch its head up 39 feet. It was the tallest plant-eater.

There were actually over 1,000 different species of non-avian dinosaurs. There are still dinosaurs that haven't been discovered.

Paleontologists are the scientists that study dinosaurs. They have a pretty cool job.

Dinosaurs ruled the Earth for 165 million years. Just to put that into perspective: humans have been around for 2 million years.

The largest dinosaur eggs were the size of a basketball. They had a thick outer shell.

Meat-eating dinosaurs had bones filled with air. That means that their skeletons were rather light, like birds.