Study dives deep into saving endangered shark
(PHYSorg.com Biology)

Mackerel sharks are large, fast-swimming apex predators that include Hollywood heavy-hitters like great whites (Jaws), mako (Deep Blue Sea) and the now-extinct Megalodon (The Meg). One of the smallest mackerel sharks is the porbeagle-on average less than two metres long-and it`s one of the most critically endangered species of shark, too.