Jaws of most shark species show little variation over millions of

the jaw shape of the most widespread shark species has shown surprisingly little variation over millions of years

Why haven't sharks evolved so much? - Quora

Cannibalism in the womb may have helped make megalodon sharks

Shark Mystery: Where Have South Africa's Great Whites Gone? - Yale

Sharks of the Jersey Shore — Save Coastal Wildlife

16 times sharks made our jaws drop

Shark v Man – could an attack on British shores ever happen?

439M-year-old fossil is oldest jawed ancestor of sharks - Big Think

Great white shark - Wikipedia

The State of Sharks, 40 Years After Jaws

Prince Hussain Aga Khan and Sharks – the Prince's Favourite