Post on 14-Dec-2015
transcript
Octavio’s Book
CrustaceansCrustaceans
Crustaceans are Invertebrates (no backbones)
The lobsters
and crabs are
crustaceans
Their body is encased in a stiff shell that …
… must be shed to allow the animal to grow
The shrimps and barnacles are crustaceans
A crustaceans body is made of 3 parts: head, thorax and abdomen
although, the head and thorax may fuse
Only crustaceans
have two pairs
of antenna in
the head
The krill and
horseshoe
crab are
crustaceans
Most crustaceans are aquatic
..but some have adapted to terrestrial life
The hermit crab and woodlice are terrestrial crustaceans
Few crustaceans
are parasites
and live attached
to their host
The sea lice
and whale lice
are
crustaceans
Species of crustaceans can look very different one of the other
but all have the
basic larval
form known as
nauplius
Some crustaceans are an important ingredient
in the culinary tradition of many countries
The science that study the crustaceans is
the carcinology
Other interesting
crustaceans are the cleaner shrimps
There exists more than 55,000 species of crustaceans