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T-Rex problems (i.imgur.com)
submitted 2 years ago by to c/4chan@lemmy.world
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[–] 2 points 2 years ago (1 child)

Since we only found 3 trex skeletons how could we know if their young grew fast?

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  • [–] 1 point 2 years ago

    We have over 40 T. rex specimens, and many more Tyrannosaurs. We can age them and observe growth rates by measuring bone rings, just like tree rings. Jane and Petey in particular had lots of new bone growth when they died as adolescents.

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