Scientists have confirmed that Nanotyrannus was a mature species, not a young T. rex. A microscopic look at its hyoid bone provided the key evidence, matching growth signals seen in known T. rex ...
Skull, Mandible and Hyoid Bone of a Red Howler Monkey (IMAGE) Cell Press Caption This photo is of a skull, mandible and hyoid bone of a red howler monkey, showing the enormous size of the hyoid ...
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