There are more than 465 known types of sharks living in our seas today. Sharks are a summit predator at or close to the highest point of their marine natural ways of life, and they direct the populaces of species underneath.
Research has demonstrated that enormous consumption of sharks has falling impacts all through the sea's biological systems.
Surely understood species, for example, the colossal white shark, tiger shark, blue shark, mako shark, thresher shark, and hammerhead shark are pinnacle predators—living beings at the highest point of their submerged evolved way of life. Many shark populaces are undermined by human exercises.
Sharks are found in all oceans and are basic to profundities of 2,000 meters. They by and large don't live in freshwater in spite of the fact that there are a couple of referred to special cases.
Sharks have a covering of dermal denticles that shield their skin from harm and parasites notwithstanding enhancing their liquid progression. They have various arrangements of replaceable teeth.
A few sharks move over extraordinary separations to sustain and breed. Some shark species, similar to the immense white shark, assault, and amazement their prey, typically seals and ocean lions, from beneath.
Species that harp on the sea depths has built up the capacity to base nourish. Others assault tutoring fish in a bolstering craze, while extensive sharks like the whale and lounging sharks channel sustain by swimming through the sea with their mouths open wide, sifting huge amounts of tiny fish and krill.