The megalodon, a giant shark that went extinct some 3.6 million years ago, is famous for its utterly enormous jaws and correspondingly huge teeth. Recent studies have proposed that the megalodon ...

A giant prehistoric salmon had large tusk-like spikes protruding out of its snout that could have "easily" killed a shark or other large marine animals, the lead author of a study told Newsweek ...

Shark species in WA state: sevengill, blue, thresher soupfin & salmon sharks. Know what they eat, how to avoid them & what’s safe to wear.

Shark species in WA state: sevengill, blue, thresher soupfin & salmon sharks. Know what they eat, how to avoid them & what’s safe to wear.

Shark species in WA state: sevengill, blue, thresher soupfin & salmon sharks. Know what they eat, how to avoid them & what’s safe to wear.

Shark species in WA state: sevengill, blue, thresher soupfin & salmon sharks. Know what they eat, how to avoid them & what’s safe to wear.

The largest salmon species ever discovered, Oncorhynchus rastrosus may have used its distinctive, tusk-like teeth to compete with rivals, defend against predators and dig nests.