Hydrostatic Skeleton
A leech is a fasinating parasite
A hydrostatic skeleton is a type of skeleton many animals in the animal kingdom have.
Hirudinaria is the genus for a type of leech. Hirudinaria manillensis is a buffalo leech.
Leech
They have a type of skeleton called a hydrostatic skeleton. This type of skeleton is a fluid filled sac which is surrounded by muscles.
Internal Skeleton
a sponge skeleton
internal skeleton
it doesn't have a skeleton
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Sucking blood from a host animal.