A Bullshark
Bull Sharks are a placatable variant of shark. Unlike the other species of the sharks, Frilled, Great White, Hammerhead, Megamouth, and Bonnethead, the Bull shark is the only shark which will attack the player unprovoked. This is because in real life, bull sharks and tiger sharks are the most dangerous sharks to come accross, and the only one to actively try to hunt humans. They are placatable because they can be kept distracted by throwing raw fish to them, and they will leave you alone so they can eat the fish.
The bull shark (Carcharhinus leucas), also known as the Zambezi shark (informally zambi) in Africa and Lake Nicaragua shark in Nicaragua, is a species of requiem shark commonly found worldwide in warm, shallow waters along coasts and in rivers. It is known for its aggressive nature, and presence mainly in warm, shallow brackish and freshwater systems including estuaries and (usually) lower reaches of rivers.
Bull sharks are euryhaline and can thrive in both salt and fresh water. They are known to travel far up rivers, and have been known to travel up the Mississippi River as far as Alton, Illinois, about 1,100 kilometres (700 mi) from the ocean, but few freshwater interactions with humans have been recorded. Larger-sized bull sharks are probably responsible for the majority of nearshore shark attacks, including many incidents of shark bites attributed to other species.
Unlike the river sharks of the genus Glyphis, bull sharks are not true freshwater sharks, despite their ability to survive in freshwater habitats.