Shark Official

: The Portuguese dogfish has been found at depths of over 12,000 feet , where the pressure is immense and the water is near freezing. Guardians of the Ocean

: One of the largest Great White sharks ever recorded, she is estimated to be over 20 feet long and roughly 50 years old. : The Portuguese dogfish has been found at

: Using organs called the Ampullae of Lorenzini , sharks can detect the tiny electrical impulses of a heartbeat in the dark or under sand. : Most bites are "exploratory" and not fatal

: Most bites are "exploratory" and not fatal. Sharks often let go once they realize a human is not their calorie-rich natural prey like seals. Their survival isn't just luck; it's the result

Sharks are older than trees and the dinosaurs. Their survival isn't just luck; it's the result of perfect biological engineering:

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

: 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