The tiger shark is a dangerous predator, known for eating a wide range of items. Its usual diet consists of fish, seals, smaller sharks, birds, squid and turtles. It has sometimes been found with detritus such as licence plates or pieces of old tires in its digestive trackt. It is notorious for attacks on swimmers, divers and surfers in Hawaii; and is often referred to as the "bane of Hawaiian surfers" and "the wastebasket of the sea".
The tiger shark is second only to the great white in number of recorded human fatalities and is considered, along with the great white, bull shark and the oceanic whitetip shark to be one of the sharks most dangerous to humans. Generally, tiger sharks are sluggish, but they can move quickly when feeding, and should be treated carefully on the rare occasions they are sighted. If you see one while diving, calmly leave the water, keeping it in sight at all times.