Sharks are capable of adapting quickly in different environments by adjusting their unique physical features to their surroundings. The shark can adjust its internal temperature to live in a various climates. The shark’s incredibly tough skin provides high defense from the attacks of other predators and the color of their skin gives them camouflage abilities underwater.
The adaptive features of sharks have enabled the species to survive in waters all over the world for more than 400 million years. Although the shark is a capable predator in many waters, sharks mainly change their environment when in search of food. Sharks can also detect aquatic wildlife in the area by utilizing electromagnetic fields; this makes it easier to protect themselves and spot potential meals at any time. They readily travel long distances to another region to survive when food in one environment becomes scarce. These sea creatures can smell prey from over a mile away and they have multiple rows of extra sharp teeth to crush any animal. Sharks remain submerged thousands of feet below the water’s surface and they only rise during mealtime. Amazingly, sharks actually sleep with their eyes open, and only one hemisphere of their brains rests during periods of slumber.Learn More
There are 465 known species of sharks that display different physical characteristics. Most are identifiable by their darker upper sides that blend with the water above and their white or lighter-colored undersides that blend with the sea below, in addition to their fins, side gill slits and rows of sharp teeth. Shark skeletons are composed of cartilage, a light and flexible tissue.Full Answer >
Whale sharks are the largest living fish, with a maximum weight of 34 tons and a maximum length of 67 feet. They are filter feeders equipped with special filter structures in their enlarged gills. They have a global distribution and migrate great distances but prefer to live and feed in warmer coastal waters where food sources are plentiful.Full Answer >
Venice, Fla, is considered the Shark Tooth Capital of the World. Specifically, Venice Beach is known for the abundance of shark teeth that can be found on its shores.Full Answer >
Though sharks are considered apex predators, they are often eaten by humans and are sometimes eaten by killer whales. Shark embryos from different fathers will also eat each other in utero, with the largest embryo of the bunch usually winning out.Full Answer >