Between eight and 14 feet but can reach up to 23 feet Using this method, scientists discovered Greenland sharks have a life expectancy of at least 272 years and could reach 392, give or take about ...

Sand tiger sharks, also known as gray nurse sharks, have a deceivingly ferocious look. They are large-bodied and display a mouthful of sharp teeth that protrude in all directions, even when the ...

We just take, take all the time …” Society Grant Your National Geographic Society membership helped fund this project. Glenn Hodges wrote about oceanic whitetip sharks in the August 2016 issue.