Shark Site

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

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

Sharks are not "villains"—they are the immune system of the ocean. : The Portuguese dogfish has been found at

: 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 have patrolled our oceans for over 400 million

: 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.

have patrolled our oceans for over 400 million years, surviving five mass extinctions. Here are several "deep" perspectives—from biological wonders to conservation and cultural impact—to help you craft a powerful post. The Ancient Survivors

: As apex predators, they keep prey populations healthy by removing the weak and sick, preventing overgrazing of seagrass and coral reefs.