Q:

How many gill slits do sharks have?

A:

Quick Answer

Sharks have five to seven gill slits located on each side of their heads. They use their gills to filter oxygen from the water and do not have gill covers.

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Full Answer

There are more than 465 species of shark in the ocean. Their skeletons are made of cartilage, a tissue that is more flexible than bone. Sharks have many rows of teeth, and they grow new teeth to replace lost ones. They eat fish, crustaceans, mollusks, plankton, krill, marine mammals and other sharks. Sharks can detect blood in the water from miles away. They can live in various temperatures, and some species of shark can swim in salt, fresh and brackish waters.

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Related Questions

  • Q:

    What are some amazing facts about sharks?

    A:

    An amazing fact about sharks is that the skins of females are much thicker than that of males. This is because male sharks tend to bite the females during mating. In its lifetime, a shark can go through about 30,000 teeth.

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  • Q:

    How does a shark protect itself?

    A:

    The 400 living species of sharks defend themselves in a variety of ways that vary from species to species. Large species, such as great whites, basking sharks and whale sharks derive protection from their size; they are too big to represent potential prey for any species except humans. Other species, such as carpet sharks, rely on their flattened morphology and cryptic coloration to avoid the detection of predators.

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    What are some interesting facts about blue sharks?

    A:

    Blue sharks are known for their distinct coloring, which allows them to blend in with ocean water. From above, the water appears darker and camouflages the shark's dark blue back, while its white underside resembles the sunlit ocean surface when seen from below. As a pelagic species, blue sharks inhabit the open water and often travel in large schools made up of only males or females.

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    Do sharks have tongues?

    A:

    The Florida Museum of Natural History states that sharks do have tongues. The tongue is referred to as a basihyal, which is a small, thick piece of cartilage located on the bottom of the shark's mouth.

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