internal skeleton
The Bee Hummingbird.^^
A hydrostatic skeleton is a type of skeleton many animals in the animal kingdom have.
hummingbird
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
it doesn't have a skeleton
worm
The appendicular skeleton is attached to the axial skeleton.
There are 62,305 different type of skeleton.
humming bird wings
A liver fluke is an invertebrate, which means it has no skeleton.