Hobbies And Interests
Bull Sharks
The bull shark is the most dangerous shark in our waters and is responsible for more attacks on humans than any other shark species, due to its high level of aggression and shallow hunting grounds. The bull shark has the highest testosterone levels of any living species on the planet, which is what makes this species so incredibly aggressive toward other living things. Bull sharks tend to hunt in shallow, murky waters where visibility is low, which accounts for the strange contents found in their stomachs. Among the bizarre items found in bull sharks' stomachs are hippopotamuses, dismembered human feet and dolphins. Parts of a human skull also have been found inside a bull shark's stomach -- a strange find, given that shark attacks on humans to the head are very rare.
Great Whites
White sharks are the most infamous species of shark, immortalized in popular consciousness through the attention they received from the movie "Jaws." Most white shark attacks on humans are fatal, due to the sheer size and force of these massive creatures. Attacks on humans by the great white shark, however, are rare, because these awesome animals tend to live and hunt far from where humans swim and play in the water. White sharks feast on a steady diet of seals, whale carcasses and smaller sharks and fishes, but attacks on humans can occur when a white shark mistakes a swimmer for its natural prey. Unusual items found a white shark's stomach include bicycle parts, tin cans and nails, as well as horse and elephant remains.
Tiger Sharks
Tiger sharks are one of few shark species known to sample just about anything they come across in the ocean, making them one of the most dangerous sharks to humans. Considered the ocean's natural garbage disposals, tiger sharks are opportunistic feeders that will eat anything that looks like a meal, even non-living items and materials. Hand bags, rolls of linoleum, license plates, nuts and bolts, copper wire, smaller sharks, turtles and human remains have all been found inside tiger sharks' stomachs.
Greenland Sharks
Little is known about the eating habits of the Greenland shark, due to the deep, arctic depths in which it lives and feeds. Scientists believe the Greenland shark's main diet consists of herring, halibut, salmon, sea lions, seals and cetaceans. But in 2008, Norwegian scientists made a strange discovery when examining the stomach contents of a Greenland shark carcass. The scientists found a piece of jaw belonging to a young polar bear in the shark's stomach, leading to questions about this mysterious shark's hunting habits. Uncertain whether the shark hunted the bear or scavenged its dead body, the discovery has perplexed scientists from around the world. Caribou, a species of land-dwelling reindeer, have also been found in Greenland sharks' stomachs, and are believed to have been scavenged by the shark or attacked while swimming.