Friday, November 5, 2010
White Spotted Bamboo Shark
The White Spotted Bamboo Shark is a carpet shark with an adult size that approaches one Metre in length.This small, mostly nocturnal species is harmless to humans. The whitespotted bamboo shark is occasionally kept as a pet in larger home aquariums
Thursday, November 4, 2010
Wednesday, November 3, 2010
Sharks in General
Shark Hearing
Sharks have extremely sensitive hearing. They can identify much lower sounds than human ears can detect, and some can hear sounds more than 700 feet away. Some scientists think hearing is typically the first sense sharks use in detecting their prey.
Shark Smelling
Smell, however, could be the most remarkable of the sharks' senses. Some sharks may be able to track their prey by smell from up to a mile away, probably by following a trail of microscopic particles of protein or blood.
Shark Babies
Different sharks have their babies, or "pups," in different ways. Some lay egg cases. Others grow the pups inside of them and give birth to live young. Depending on the species, a shark may give birth to one or to dozens of pups! However it is born, a pup is on its own from the start—the mother shark doesn't stay around to take care of it.
Shark Evolution
Scientists think that ancestors of sharks lived more than 400 million years ago—about 200 million years before dinosaurs. The main types of sharks living today evolved by 100 million years ago.
Shark Teeth
Most sharks have at least four rows of teeth. They don't chew—they use their powerful teeth to bite and tear their food. As the first row of teeth in a shark gets worn out, the other rows of teeth move forward. New teeth are always forming.
Shark Predators
Sharks rarely pose a danger to humans. But humans do pose a danger to sharks! Fishermen kill an estimated 30 million to 100 million sharks every year. About 75 shark species are in danger of becoming extinct.
Sharks have extremely sensitive hearing. They can identify much lower sounds than human ears can detect, and some can hear sounds more than 700 feet away. Some scientists think hearing is typically the first sense sharks use in detecting their prey.
Shark Smelling
Smell, however, could be the most remarkable of the sharks' senses. Some sharks may be able to track their prey by smell from up to a mile away, probably by following a trail of microscopic particles of protein or blood.
Shark Babies
Different sharks have their babies, or "pups," in different ways. Some lay egg cases. Others grow the pups inside of them and give birth to live young. Depending on the species, a shark may give birth to one or to dozens of pups! However it is born, a pup is on its own from the start—the mother shark doesn't stay around to take care of it.
Shark Evolution
Scientists think that ancestors of sharks lived more than 400 million years ago—about 200 million years before dinosaurs. The main types of sharks living today evolved by 100 million years ago.
Shark Teeth
Most sharks have at least four rows of teeth. They don't chew—they use their powerful teeth to bite and tear their food. As the first row of teeth in a shark gets worn out, the other rows of teeth move forward. New teeth are always forming.
Shark Predators
Sharks rarely pose a danger to humans. But humans do pose a danger to sharks! Fishermen kill an estimated 30 million to 100 million sharks every year. About 75 shark species are in danger of becoming extinct.
Tuesday, November 2, 2010
Dwarf Lanternfish
The Dwarf Laternfish is the smallest known shark up to date.Its a deepwater dogfish shark that calls the Caribbean Sea home.A full grown female comes in at about 7 1/2 ferocious inches while the male Dwarf Lanternshark reaches only 6 inches.
Monday, November 1, 2010
Basking Shark
The basking shark is the second largest fish in the world. These sharks can grow up to a length of ten meters, but, some of them have a body length of 11 to 13 meters too. An average adult basking shark can have a body weight of around 9000 pounds (4 tonnes). A distinct feature of these sharks is the five big gill slits on the either side of the head. The gill slits runs from the top to the bottom of the head. These gills have thousands of bristle-like gill rakers, that help them to filter the food floating in the water. These gill rakers are shed periodically.
Friday, October 29, 2010
Galeocerdo Cuvier AKA Tiger Shark
One of the most dangerous animals on the Reef, this species eats a wider variety of foods than other sharks including fish, crustaceans, birds, sharks, rays, turtles and mammals. It feeds at night in shallow reefs, retreating to deeper water during the day. (Up to 7.5 m). Known to be very popular with cruelty. It is not only eating all kinds of marine life, but they (Tiger) is also famous for attacking swimmers. As the name implies, this shark is very similar to the style of tigers
Thursday, October 28, 2010
The Hammerhead Shark
The Great Hammerhead shark has been known to grow as large as 6m. Hammerheads mostly hunt at dusk and feeds on sharks, fishes (including catfishes, toadfishes, jacks, herring, groupers and boxfishes), squid, and crustaceans (including shrimps, crabs and mantis shrimps) that occur on or near the bottom There has only been 12 reported cases of an u Places to see:
Popular places to see Hammerhead sharks include South Africa, Galapagos Islands, Coco Islands, Great Barrier Reef (Australia) and some Indonesian islands. Huge schools of Scalloped Hammerheads can be seen at the Galapagos Islands, which is a truly amazing experience!Wednesday, October 27, 2010
Carcharodon carcharias
The legendary great white shark is far more fearsome in our imaginations than in reality. As scientific research on these elusive predators increases, their image as mindless killing machines is beginning to fade.Great whites are the largest predatory fish on Earth. They grow to an average of 15 feet (4.6 meters) in length, though specimens exceeding 20 feet (6 meters) and weighing up to 5,000 pounds (2,268 kilograms) have been recorded.Their mouths are lined with up to 300 serrated, triangular teeth arranged in several rows, and they have an exceptional sense of smell to detect prey
Tuesday, October 26, 2010
The Megladon
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