The bull shark, Carcharhinus leucas, also known as Zambezi shark , known as Zambi in Africa and Nicaragua shark in Nicaragua. The bull shark is well known for its unpredictable, often aggressive behavior. Bull sharks are typically solitary hunters. Bull sharks have been known to use the "bump-and-bite" technique to attack their prey. Most of a bull shark's diet consists of bony fish and sharks, including other bull sharks , but can also include turtles, birds and dolphins. The bull shark swims up large rivers such as the Amazon, and can be found hundreds of miles from the sea.