Hunting Down an Ancient 'Buzzsaw Killer'

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[Zelousmarineinspace]

Earlier interpretations of Helicoprion had the saw blade as a lower lip that the shark would shake it's head from side to side to cut fish.
This new discovery is very interesting, and it makes more sense given the supposed behavior of the shark.

[naruhina]

Is this a teaser?
Cause I don't find this episode