this post was submitted on 15 Nov 2023

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T-Rex problems (i.imgur.com)

submitted 1 year ago by NotSpez@lemm.ee to c/4chan@lemmy.world

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[–] Spaceballstheusername@lemmy.world 2 points 1 year ago (1 children)

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

[–] Tlaloc_Temporal@lemmy.ca 1 points 1 year 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.