Sharks - Page 2

The dentition of the tiger shark is designed uniquely for ‘puncture-and-rip’ style. The jaws are very strong with highly serrated and sharp, comb-shaped teeth. Both jaws have similar shape and size. It has asymmetric teeth with hooked cusps. A tooth contains a primary cusp along with small secondary cusplets. The…

Basking shark feeds on plankton and there are hundreds of very small hooked teeth inside its mouth. These teeth are arranged in more than 150 rows. Each tooth measures about 5 to 6 millimeters in size. The teeth in the middle are triangle-shaped while the side teeth are hooked and…

The size of the whale sharks has been a matter of debate that hasn’t settled yet. Researchers describing different sizes of these sharks are fairly common. Some of them believe the whale shark is 60 feet (18 metres) in length. However, it is not confirmed. How Big Do Whale Sharks…

As of now no one knows for sure whether sharks doze off or keep on swimming continuously. So it’s a matter of debate that hasn’t been settled yet. But what’s clear is the fact that sharks do indeed have restful periods. Scientists have reported some sharks to remain at stationary…

As a shark sails underwater, it takes in water into its mouth. This water passes over the gills of these fishes and then seeps out of it thanks to the gill slits on either side of the shark. It is often referred to as passive breathing or more precisely ram…

The scientists were puzzled about the reproductive success of whale sharks for years. In the past, they did not have any idea about the mode of reproduction of this species. Whether it bears live young or lays eggs, it was all a mystery. But in the end in 1955, they…

Whale shark is by far the biggest living fish which means its mouth would be 4.9 feet across. However, that doesn’t necessarily mean that it poses significant threat to divers. Quite the opposite, this shark appears to be easy to control. What’s more interesting, whale shark is often seen swimming…

No one knows why Megalodons became extinct. Whether lack of food, drastic environmental changes or some other combination of factors led to the death of Megalodon’s pups, we just don’t know. Given the massive size of 52 feet, its presence would certainly have made it a lot fearsome for humans…