Shark File

: One of the largest Great White sharks ever recorded, she is estimated to be over 20 feet long and roughly 50 years old.

: Using organs called the Ampullae of Lorenzini , sharks can detect the tiny electrical impulses of a heartbeat in the dark or under sand. : One of the largest Great White sharks

: Their skin is covered in tiny, tooth-like scales called "dermal denticles" that reduce drag and allow them to swim silently through the water. : Over 100 million sharks are killed annually,

: Over 100 million sharks are killed annually, primarily for their fins or as bycatch, threatening the stability of entire marine ecosystems. Legendary Giants Key Posting Tips

: These slow-moving giants can live for over 400 years , meaning some sharks alive today were swimming when the Pilgrims arrived in America.

: The largest fish on the planet, these gentle giants filter-feed on tiny plankton and can dive deep into nutrient-rich cold water to regulate their temperature. Key Posting Tips