Q:

How many gill slits do sharks have?

A:

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:

    How many teeth do tiger sharks have?

    A:

    Tiger sharks have a row of 24 teeth in their upper jaw and a matching set of 24 teeth in the lower jaw, totaling 48 teeth. Tiger sharks have a square jaw structure, and each of their teeth are built with cutting and sawing mechanisms.

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  • Q:

    How many sharks are left in the world?

    A:

    There is no way to accurately count the number of remaining sharks as there are more than 400 known species of shark spread out all around the world. However, what researchers do know is that an estimated 100 million sharks are killed each year which exceeds what the different species need to recover.

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  • Q:

    How many teeth do great white sharks have?

    A:

    The great white shark has approximately 50 full teeth in its jaw, according to the Fox Shark Research Foundation. It has from 24 to 26 teeth in the upper jaw and 22 to 24 in the lower jaw.

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  • Q:

    How many great white sharks are there in the world?

    A:

    In 2010, Barbara Block of Stanford University estimated the world population of great white sharks at less than 3,500 individuals. A June 2014 report from the Florida Program for Shark Research estimated that there are 3,000 great whites in the eastern North Pacific alone, suggesting a higher world population.

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