Valley revision
What did we learn about here?
1.
Which one is a type of tyrannosaur?
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Albertosaurus2.
What is NOT something found in both dinosaurs and birds?
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Large, sharp teeth3.
What is “speciation”?
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How one species becomes two over time4.
What do we know about hadrosaurs?
Show Answer
They may have used their crests for vocalizations
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