Tag: Shark

Having a skeleton made of lightweight cartilage allows sharks to conserve energy and swim long distances. Because shark skeletons are made of soft cartilage, which doesn’t fossilize well, most of what scientists know about ancient sharks comes from teeth, scales and fin spine fossils. How many mass extinctions did sharks survive? Sharks Have Survived Four […]

Today’s sharks are descended from relatives that swam alongside dinosaurs in prehistoric times. In fact, the largest predator of all time was a shark called a Megalodon. It lived just after the dinosaurs, 23 million years ago, and only went extinct 2.6 million years ago. Is a shark a fish or a dinosaur? Sharks, and […]

Like rays and skates, sharks fall into a subclass of fish called elasmobranchii. What is the shark fish name? Sharks Species Profiles Family Genus & species Common name Hexanchidae Hexanchus nakamurai bigeye sixgill shark Lamnidae Carcharodon carcharias white shark Lamnidae Isurus oxyrinchus shortfin mako Lamnidae Isurus paucus longfin mako What is shark meat called in […]

No, sharks are not mammals, but actually fall under the category, or class, of fish. All species of sharks are classified as fish, and further fall into the subclass of Elasmobranchii. It has often been questioned why sharks are fish, while other large sea creatures – like dolphins or whales – are mammals. Is a […]

However, the largest shark eats krill, like whales. This is the whale shark, the largest fish in the world.Shark. Sharks Temporal range: Silurian-present 420 mya to present Phylum: Chordata Class: Chondrichthyes Subclass: Elasmobranchii Infraclass: Euselachii Is a shark a sea? Sharks are found in all seas and are common to depths up to 2,000 metres […]

Are sharks fish? Sharks are fish. They live in water, and use their gills to filter oxygen from the water. Sharks are a special type of fish known because their body is made out of cartilage instead of bones like other fish. Is shark a fish or a mammal Why? Sharks are fish, even though […]

A shark’s tale: Scientists capture first ever image of the creature giving birth in the wild. The first ever record of an oceanic shark giving birth has been uncovered by scientists. The photo, taken off Malapascua Island in the Philippines, reveals the body of an elusive baby thresher shark emerging from its mother. Has anyone […]

The size of egg cases vary; those of the small-spotted catshark or lesser spotted dogfish, Scyliorhinus canicula, are around 5 centimetres (2 in) long, while those of the greater spotted dogfish, S. stellaris, are around 10 centimetres (4 in). What is the largest shark egg? The largest egg on record weighed 2.589 kg (5 lb […]

Or Baby Food. All sharks are born with teeth. They need them to survive their brothers and sisters, who will gobble each other up in the womb. How many teeth are sharks born with? But behind these 48ish teeth, there can be 5ish rows of developing teeth behind them, like this: Sharks continually lose their […]

If mating with multiple males at any given time–as sharks, insects, dogs, cats and many other animals sometimes do–the babies that the female eventually produces share the same womb with siblings that may have different fathers. In this case, however, there are two modes of selection at work. Do sharks eat their siblings? Although the […]

Then the sharks engage in complex behavior as the male attempts to internally fertilize the female’s eggs. Often, the male must bite the female’s back, flanks and fins, sometimes inflicting serious looking wounds, in order to get into a position to mate. Do sharks mate violently? The sharks behave aggressively during mating, and afterwards the […]

The basics of biology tell us that for two animals to reproduce, you need a male and female counterpart, in most of the cases. However, in what could be the first form of asexual reproduction in smoothhound sharks, a ‘miracle’ baby was born in a tank where only two female sharks lived for the past […]

A Bite That Breaks Bones A great white shark has approximately 50 razor-sharp teeth which can easily break bones, but the new suit hopes to prevent tear lacerations. Can shark teeth break bones? Sharks have three types of teeth: the ones spoken of above which are straight and pointed, which they use to catch slippery […]

The jaws of a great white shark can inflict a bone-crunching bite of up to 1.8 tonnes, according to Australian researchers. Can shark teeth cut through bone? These teeth act something like a hunting knife — they cut easily through tough flesh and bone. Many sharks have combinations of long pointed teeth and wider serrated […]

Photo: Courtesy of Dmitry Vasyanovich One of the rules of shark cage diving is when you are tempted to reach out and touch a great white shark swimming by, don’t do it. Divers are explicitly instructed to keep hands, arms, cameras — everything — inside the shark cage. Is it OK to touch a shark? […]

In fact, providing it’s done respectfully the odds of being attacked by a shark while scuba diving are minuscule. Despite the hype and horror stories, there are, on average around ten deaths caused by sharks per year, worldwide. And the majority of those are surfers or swimmers, not divers. Has a diver ever been attacked […]

Tiger sharks, great white sharks and killer whales like to eat hammerhead sharks. Humans are the biggest enemy of the hammerhead shark! What are four prey of hammerhead sharks? Hammerhead sharks eat a large range of prey such as fish (including other sharks), squid, octopus, and crustaceans. Stingrays are a particular favorite. These sharks are […]

The Black Demon is said to be between 20-60 feet long and weighing anywhere between 50-100,000 lbs. It is said to resemble a great white shark but with very dark coloration and a large tail. Some say it could be the Megalodon or a new species of shark, or perhaps an unusually large Great White. […]

Worlds Largest Megalodon Teeth The tooth was measured by Paleontologist Craig Sundell and has a slant height of 7.48 inches. The tooth was found broken and glued back together. It was found in the desert of Ocucaje, Peru. What’s the biggest megalodon tooth ever found? The largest megalodon teeth to be found have been in […]

This is the stunning moment a great white shark weighing nearly one ton ‘screams’ before launching itself out of the water. The incredible series, taken off the coast of Guadalupe Island in Mexico, shows a cluster of bubbles coming out of the great white’s mouth resembles a voiceless ‘shout. Do any sharks make noise? Here’s […]