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
The size of a shark depends on its species. The largest living shark, the whale shark, averages 31.82 feet long. The extinct megalodon was even bigger at about 60 feet long. The smallest shark is the dwarf lanternshark, which is only 6.7 inches long.Full Answer >
Sharks are afraid of dolphins when outnumbered because they like to eat animals that are much smaller than them, including baby dolphins, but adult dolphins will protect their young by trying to kill a shark any time they see one. Dolphins are usually successful at killing the sharks that they find because they attack in groups, ramming their bodies into the shark until it dies.Full Answer >
According to Shark Savers, sharks are important because of the role they play in the oceans. Sharks have a positive effect on food webs, ocean populations and habitat health.Full Answer >
"Mud shark" is another name for the spiny dogfish, a type of small shark notable for having a spine on each dorsal fin capable of injecting venom as a defense mechanism. The spiny dogfish is common in temperate waters around the world and is also used in cuisine.Full Answer >