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Most sharks are not dangerous to humans — people are not part of their natural diet. Despite their scary reputation, sharks rarely ever attack humans and would much rather feed on fish and marine mammals. Only about a dozen of the more than 300 species of sharks have been involved in attacks on humans.
There were nine shark-related fatalities this year, five of which are assigned as unprovoked. This number is in line with the 5 year annual global average of six unprovoked fatalities per year. Annual fluctuations in shark-human interactions are common.
Sharks keep the food web in check.
These sharks keep populations of their prey in check, weeding out the weak and sick animals to keep the overall population healthy. Their disappearance can set off a chain reaction throughout the ocean — and even impact people on shore.
Made of very strong and thick bone, dolphin snouts are biological battering rams. Dolphins will position themselves several yards under a shark and burst upwards jabbing their snout into the soft underbelly of the shark causing serious internal injuries. More than Peas in a Pod.
Without sharks as apex predators, the entire ocean ecosystem could fall out of balance. They not only maintain the species below them in the food chain, but also indirectly maintain seagrass and coral reef habitats.
You have an 89.4% chance of surviving a shark attack.
On the morning of January 15, 1983, a body of a black man washed ashore. Most of the body had been devoured by sharks. It appeared a shark had bit his foot when he was alive. However, it is unknown if this is what caused his death, as he could have drowned before he was bitten.
Sharks are attracted to human blood
The sensing organ of a shark, called the ampullae of Lorenzini, can detect electric fields produced by living things. They can also detect blood in the water from miles away. Contrary to popular belief, however, sharks are not attracted to human blood.
Whale Shark
Whale sharks are among the friendliest shark species, if not the friendliest. They have been known for giving divers trips on their backs, and baby whale sharks are known to interact with humans.
Bump & Bite: Characterized by the shark circling and often “bumping” their victim prior to instigation of an attack. Unfortunately, this behaviour appears to be associated with feeding and often leads to serious, often fatal, injuries. Multiple bites are not uncommon.
#5 A lion named Ethiopia
Sometime ago there is a tragedy happen in Ethiopia. Three lions in this region saved a girl from four men. The girl was around 12 years old. These four men were following her when she was coming from school and then kidnapped her.
Four swimmers were saved from a great white shark by a pod of altruistic dolphins, who swam in circles around them until the humans could escape.
While much of life became extinct during the End-Cretaceous extinction event, including all non-avian dinosaurs, sharks once again persisted.
Is it OK to touch a shark? While it may be tempting, Julie Andersen of Shark Angels says that divers should resist the urge to touch sharks. Julie Andersen — one of Scuba Diving's 2012 Sea Heroes — is founder and executive director of Shark Angels, a U.S. nonproft dedicated to protection of sharks.
If you're being attacked and fighting back, try to avoid the dangerous mouth and go for the gills behind the mouth near the pectoral fins. A good shot to the gills can also do the job: “The gills are very sensitive – giving a shark a whack in the gills isn't a bad idea.” Are you carrying anything with you?
FICTION: Sharks are attracted to human blood, so if you cut yourself at the beach, you will be attracting sharks. FACT: Sharks know the difference between fish and human blood and, while they can smell our blood, it is not a scent they associate with food.
I often say to people, “It doesn't hurt to get eaten by a shark.” There's no pain, initially, because their teeth are so sharp that you don't feel the bite. It was like if someone puts their hand around your wrist and gives your arm a shake.
Classic shark bites are crescent-shaped. Another common wound pattern is a series of parallel cuts caused by the shark raking its teeth on the person. Sharks bites can cause massive tissue loss, with a tooth-to-tooth biting force that has been estimated to approach, in the extreme, 18 tons per square inch.
Overfishing. Overfishing is the biggest threat to sharks: more than 100 million shark are killed every year, with a large number of them being caught for their fins.
How many sharks are killed each year? Humans kill an estimated 100 million sharks every year. That's an average of almost 274,000 sharks every day, over 11,000 sharks every hour, and around three sharks every second!