They are perfect, relentless and always hungry. They never sleep and prowl the seas like nuclear-powered torpedoes. That would be a pretty bad rap for anybody, even though few sharks would attack a human without being provoked. Scientists claim that sharks kill without ill will or premeditation and thus cannot be labeled 'malicious'. Yeah, right :)
Great White (and Smirking) Killing Machine
These guys hang around the shores of South Australia, South Africa and often approach divers with a friendly nuzzle and a line "Are you talking to me?" -
This is definitely going to increase your confidence at sea: the enormous monster breaching the waves and flying at you with bloody dripping jaws. OK, it may not happen with such vivid color, but still....
The Tiger shark is the fourth largest predatory shark. This shark is a solitary hunter, usually hunting at night. Its name is derivative from the dark stripes down its body, which grow fainter as the shark matures. It is infamous for attacks on swimmers, divers and surfers in Hawaii and is often referred to as "the wastebasket of the sea".
Bull sharks often cruise through shallow waters and can suddenly burst into speed and can be highly aggressive. They are extremely territorial and will attack other animals and humans that enter their territory. Bull sharks are among the four species considered to be most dangerous to humans.
- A shark does not have one bone in its body. Its skeleton is made up of cartilage. Cartilage is a tough material, like the material that shapes your ear. - The Swell Shark, found in New Zealand, barks like a dog. - Weird things have been found inside a shark, such as a bottle of wine, a treasure chest, a suit of armor, a drum and a torpedo. - A shark’s skin is covered with denticles, which are small, razor-sharp teeth.
Not all huge sharks live in the warm or tropical waters. There is a shark species (still in many ways a mystery to biologists) that lives deep in the Artic water - sometimes as deep as 600 meters:
Greenland Sharks Lurk Beneath the Arctic Ice
The sleeper shark.... the "gurry" shark: the largest of Greenland sharks are comparable in size with the great white shark, although there is no record of them ever attacking humans. Check out these teeth though: small but razor-sharp -
(images by Nick Caloyianis National Geographic, and Canadian Shark Research Lab)
"Forget the cold. I kicked my fins and swam toward the shadowy figure. It turned and began moving toward me. I was face-to-face with a Greenland shark. I’d seen drawings and paintings of the fish, but this was utterly different. It was ghoulish. Its nostrils were the largest I had ever seen on a shark. They reminded me of a giant double-barreled shotgun. Its mouth was slightly open, revealing rows of small sharp teeth. Its eyes looked fogged over, like those of a dead fish, and from each one dangled a tasseled parasite." (Nick Caloyianis)
These guys are nearly blind, but they have a mouth big enough to eat a full-grown seal as some kind of muffin. There are also stories of these sharks attacking caribou as they drink from the mouths of rivers... and eating polar bears. So here you go.
OK, I am sure you are wondering by now, which shark has the biggest mouth and what exactly size of prey it can swallow. Check this out -
A Megamouth Shark!
This extremely rare (only a few have been seen so far) deep water shark has an enormous mouth with big flabby lips... Not just enormous, but freaking ILLUMINATED mouth (to attract some plankton to the light). Read more info here, it seems it's more of a relative to the ancient Coelacanth than normal sharks.
And to finish this slighlty unsettling overview of the world's most efficient predators, please have a look at this Ghost Shark Egg: (Most sharks give birth to their babies. Only a few sharks lay eggs)
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