Sharks generally do not eat people intentionally, but they do sometimes mistake humans for other prey. Seals and sea lions are prominent staples in the shark's diet, and sometimes swimming humans resemble these creatures to a shark. Sharks have poor eyesight, so they detect food mainly with their mouths.Continue Reading
After realizing that a human isn't their preferred prey, sharks usually spit them out. Unfortunately, one bite from a shark can be lethal. Humans aren't an ideal food for sharks because humans are too bony and lack the nutrition of other prey. Seals and sea lions have a higher fat and energy content, which sharks need to sustain themselves.
Out of approximately 300 shark species, roughly twelve have been documented attacking humans. Sharks evolved to eat animals that were around millions of years before humans even existed, so they do not intentionally seek people out. Shark attacks usually get a significant amount of publicity, which is why many people fear them.
Experts recommend swimming away from sharks as quickly and calmly as possible. Because splashing attracts sharks, it is important to keep movements precise and calculated, Punching an attacking shark in the snout, head or eyes can be an effective way to get it to let go.Learn more about Sharks
Tiger sharks probably have a wider diversity of prey than any other shark species. Their primary prey species include fish, sea turtles, mollusks, sea birds and other sharks, but virtually anything swimming in the ocean is fair game. Adult tiger sharks have few predators other than humans, but young tiger sharks must avoid large predatory fish and sharks.Full Answer >
Though sharks are considered apex predators, they are often eaten by humans and are sometimes eaten by killer whales. Shark embryos from different fathers will also eat each other in utero, with the largest embryo of the bunch usually winning out.Full Answer >
Over the years, experts have been trying to determine exactly why great white sharks attack humans. Three of the main theories include the investigatory theory, mistaken identity theory and social-defensive theory.Full Answer >
Sharks are apex predators that have no natural enemies; however, humans are predators of sharks, with an estimated 30 to 100 million sharks are killed every year by fisherman. This has caused many species of sharks to become vulnerable to endangerment.Full Answer >