Bull Sharks Can Live in Freshwater
Great White sharks receive a lot of media attention due to films like Jaws and the fact that they are simply very large, however they are not thought to be the most deadly sharks in the ocean. Bull sharks deserve that distinction. Bull sharks are very combative and won't hesitate to defend their territory. Bear in mind that there aren't many shark attacks of any kind, but bull sharks are one of the more vicious marine animals. Additionally, the fact that they are not restricted to saltwater makes them seem a little more dangerous.
The majority of sharks must constantly live in saltwater in order to control the amounts of salt in their bodies. When a great white shark is submerged in freshwater, their body essentially becomes diluted with freshwater, which causes their cells to break down due to a lack of salt. However, a bull shark has evolved the capacity to recycle salt in its own body through its kidneys and some salt-retaining tail glands.
The fact that bull sharks often give birth in fresh or brackish water helps to safeguard the young from predators. Even though they eventually migrate to the sea, they may survive and thrive in freshwater.
