Sharks

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Sharks
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Like other fish, sharks extract oxygen from
seawater as it passes over their gills.
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One of the first ever detailed studies on
deep water lantern sharks, so named for their
ability to glow in the dark, has found they are
in danger of extinction.
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The leopard shark, is a hound shark found in
the coastal waters of the eastern Pacific Ocean,
along the coast of North America from Oregon to
Baja California
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The great white shark, also known as white
pointer, white shark, or white death, is an
exceptionally large lamniform shark found in
coastal surface waters in all major oceans