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Starfish - interesting and mysterious animal.
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Starfish - a veteran of the seabed,
it appeared over 450 million years ago.
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It belongs to a class of echinoderms.
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From the outside it is covered with
short needles or pins.
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Every ray of starfish, being separated from
her body, it is viable and quickly regenerates.
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Sea stars are voracious predators, although there
are exceptions in the form of herbivorous species feed
on algae.
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Some starfish even able to dig up
prey that is hiding in the sand.
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Life starfish can reach 30 years.
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At present there are about 1,600 species
of sea stars.