Sharks

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According to PBS, the average life span of a shark is 25 years. Life expectancy can vary among shark species. Sharks tend to live much longer in the wild than in captivity.

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  • How many teeth does a nurse shark have?

    Q: How many teeth does a nurse shark have?

    A: The nurse shark has thousands of small notched teeth. The jaws of the nurse shark are powerful and are used to crush hard prey, including shellfish. Fish, shrimp and squid compose the other portions of the nurse shark's diet.
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  • Where do whale sharks live?

    Q: Where do whale sharks live?

    A: Whale sharks live in all seas that are tropical or warm-temperate. Generally whale sharks range no further south than South America and no further north than the United States. They prefer warmer waters near the equator.
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  • Are sharks blind?

    Q: Are sharks blind?

    A: Sharks have the ability to see, but they cannot see colors. Dolphins, whales and other aquatic animals are also color-blind. Marine animals' survival is not dependant on the ability to see color, but rather the ability to see contrast in colors.
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  • Why are sharks important?

    Q: Why are sharks important?

    A: 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.
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  • What eats a shark?

    Q: What eats a shark?

    A: 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.
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  • What is a baby shark called?

    Q: What is a baby shark called?

    A: A baby shark is referred to as a pup. Sharks are born in three different ways. Sharks lay eggs that then hatch, carry eggs that hatch inside them or grow pups inside them.
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  • What are some interesting megalodon facts?

    Q: What are some interesting megalodon facts?

    A: The megalodon was a prehistoric shark species that went extinct at least 1.5 million years ago; the reasons the giant predators disappeared remain a mystery. Megalodons were not only the largest sharks to have ever lived, they were also the largest marine predator to ever swim the world’s oceans. While some propose that the sharks may still swim the world’s oceans, most scientists agree they are extinct.
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  • What do great white sharks eat?

    Q: What do great white sharks eat?

    A: Great white sharks are carnivores that eat seabirds, sea turtles, fish, squid, certain cetaceans (such as dolphins, porpoises and whales), and especially sea lions and seals. Great whites are occasionally observed eating the carcasses of dead whales.
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  • How do sharks adapt to their environment?

    Q: How do sharks adapt to their environment?

    A: 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.
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  • How fast can a great white shark swim?

    Q: How fast can a great white shark swim?

    A: Because of its highly streamlined shape and powerful swimming muscles, a great white shark can swim up to 35 miles per hour in short bursts. In addition to its ability to swim in short bursts, a great white can also move at a steady cruising speed. Scientists recorded one great white that swam a total of 12,400 miles in nine months, an average of 45 miles each day.
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  • Is a shark a mammal?

    Q: Is a shark a mammal?

    A: A shark is not considered a mammal. Sharks are considered members of the paraphyletic group of organisms that contain gills, or in other words, fish.
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  • What do baby sharks eat?

    Q: What do baby sharks eat?

    A: Baby sharks, appropriately called "pups," eat smaller quantities of the same food that adult sharks eat. Although the exact composition of the diet will vary due to species, environmental factors and availability, most shark pups eat fish, mollusks, crustaceans, krill, marine mammals and plankton.
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  • What does the great white shark eat?

    Q: What does the great white shark eat?

    A: Great white sharks eat mainly seals and sea lions. They also eat other types of fish and even sea turtles. Seals are a good source for great white sharks due to their large body fat ratios.
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  • Which bites more people: sharks or New Yorkers?

    Q: Which bites more people: sharks or New Yorkers?

    A: The next time you’re walking down Broadway, consider this: you are ten times more likely to be bitten by a human in New York City than by a shark off the coast of Florida. Surprising as that may seem, statistics have consistently shown that sharks aren’t a major threat to humans. While sharks certainly aren’t harmless, their danger to humans is exaggerated by news stories, B movies like Sharknado and other unfavorable pop culture references.
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  • What eats a great white shark?

    Q: What eats a great white shark?

    A: The great white shark is an apex predator, and as such, healthy adults of the species have no natural predators. Only one real threat faces the great white shark: humans that accidentally catch them, illegally poach them, pollute the waters they live in or lay nets along coastlines that may entrap them.
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  • What are the Great White Shark behavioral adaptations?

    Q: What are the Great White Shark behavioral adaptations?

    A: To survive, great white sharks have evolved several behavioral adaptations, including flexible activity patterns, migratory habits and social hierarchies. However, great white sharks are also intelligent hunters, and their most important adaptation is their use of different strategies for different prey. Great whites are not commonly kept in captivity; so many aspects of their behavior remain unknown, as it is difficult to study them in the wild.
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  • What do sharks look like?

    Q: What do sharks look like?

    A: 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.
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  • Where do hammerhead sharks live?

    Q: Where do hammerhead sharks live?

    A: The hammerhead shark is found worldwide in tropical and warm coastal waters and near continental shelves. They may also be found in the adjacent coral reefs, lagoons and surrounding deep waters.
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  • Can sharks live in freshwater?

    Q: Can sharks live in freshwater?

    A: Most sharks are not physiologically capable of living in freshwater, although the bull shark is an exception. In order to live in freshwater, the body of water would need to be wide and deep enough to accommodate the shark, and it would have to be connected to the ocean for the shark to get there in the first place.
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  • How do you perform shark tooth identification?

    Q: How do you perform shark tooth identification?

    A: To identify shark teeth, make a note of the tooth's identifying characteristics and compare it with literature or pictures of shark teeth. You need a magnifying glass to help review the tooth. Written and pictorial information helps identify most teeth.
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  • How do you fight a shark?

    Q: How do you fight a shark?

    A: If you are attacked by a shark, it is important to fight back and get out of the water as soon as possible, but there are also important tips to learn to avoid a shark encounter. Sharks generally don’t like to eat humans. When sharks bite humans it is usually a “hit and run,” where they bite the human out of curiosity and swim away. This usually happens in shallow water and is rarely lethal.
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