Spiny-skinned animals

Spiny-skinned animals
All spiny-skinned animals live in the sea.
Starfish
top
bottom
Spines protect a starfish from attack.
Its mouth is in the center of its body.
It has lots of tiny tubular feet with suckers for moving
along the seabed.
Other spiny-skinned animals
brittle star
sea urchin
sea cucumber
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sand dollar