prehistoric salmon

The largest salmon on Earth has tusks like a humped pig
The largest salmon species ever discovered, Oncorhynchus rastrosus, can use its tusk-like teeth to compete with rivals, defend itself from predators, and dig nests.
The ancestors of salmon have sharp teeth 20cm long
Scientists have just given evidence that prehistoric salmon has extremely sharp teeth and weighs more than 180 kilograms living on the Pacific coast.