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These Massive, Extinct Salmon Had Spiky Teeth Like a Warthog's Tusks
Another possibility is that the salmon used their spiky teeth to dig nests in riverbeds ... s largest living fish—including the whale shark—are also filter feeders that subsist on plankton.
Huge Prehistoric Salmon Had Spikes That Could Have 'Easily Killed' a Shark
"No other living (or extinct) salmon possesses teeth with such an unusual orientation ... could have easily killed, or ...