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Apatosauruses lived in North America during the Late Jurassic period. 

The name “apatosaurus” means "deceptive lizard.” 

Apatosauruses reached 68.9 to 74.8 feet (21 to 22.8 meters) in length, and weighed 19 tons.

According to simulations, they could produce a sound louder than cannon fire if they were to crack or whip their tails. 

Apatosauruses had to consume 880 pounds of plants per day in order to survive! 

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Triceratops lived during the late Cretaceous period, about 68 million years ago in what is now North America.

The name “triceratops” means "three-horned-face" in Greek.

Some triceratops had up to 800 teeth!

The average full grown triceratops weighed in around 7 to 12 tons.

The frill around their necks were useful for defense against predators, such as tyrannosaurus.

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Tyrannosaurus lived during the Cretaceous period, on what was once an island continent known as Laramidia.

The name “tyrannosaurus” is from the Greek word meaning “tyrant lizard.”

The tyrannosaurus measured up to 43 feet long and weighed as much as 7.5 tons.

The average full grown triceratops weighed in around 7 to 12 tons.

The tyrannosaurus was both a predator and a scavenger.

In the past, it was widely speculated that the tyrannosaurus had feathers. In 2018 however, we received the most accurate depiction of the animal, which did not include feathers.

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