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Glossary

adapted changed in order to handle new conditions
ancient from a very long time ago

bite force the power of an animal’s bite
environment the conditions that surround a living thing

estimate to make a careful guess about the size, cost, or value
of something

exhibit something that is shown to many people
extinct when a type of plant or animal has died out and there
are no more of them alive on Earth

fossils the hardened remains of things that lived long ago
paleontologist a scientist who studies fossils to find out about
life in the past
prey animals that are hunted and eaten by other animals

related belonging to the same family

Fossils help scientists
understand what dinosaurs
looked like. They can use
this information to build
models of them.

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