Octavio

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Octavios BookCrustaceans
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• Crustaceans
• are
• Invertebrates
• (no backbones)

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• The lobsters
• and crabs are
• crustaceans

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• Their body is
• encased in
• a stiff shell
• that

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• must be
• shed to allow
• the animal to
• grow

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• The shrimps
• and barnacles
• are
• crustaceans

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• A crustaceans
• body is made
• of 3 parts
• head, thorax
• and abdomen

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• although, the
• head and
• thorax may
• fuse

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• Only crustaceans
• have two pairs
• of antenna in
• the head

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• The krill and
• horseshoe
• crab are
• crustaceans

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• Most
• crustaceans
• are aquatic

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• ..but some
• have adapted
• to terrestrial
• life

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• The hermit
• crab and
• woodlice are
• terrestrial
• crustaceans

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• Few crustaceans
• are parasites
• and live attached
• to their host

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• The sea lice
• and whale lice
• are
• crustaceans

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• Species of
• crustaceans
• can look very
• different one of
• the other

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• but all have the
• basic larval
• form known as
• nauplius

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• Some
• crustaceans
• are an important
• ingredient

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• in the culinary
• tradition of
• many
• countries

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• The science
• that study the
• crustaceans is
• the carcinology

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• Other interesting
• crustaceans
• are the cleaner
• shrimps

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• There exists
• more than
• 55,000 species
• of crustaceans