Sponge Animation: Spicules


Spicules are microscopic structures of hard crystal material with fantastic shapes unique to the different species of sponge. They are part of the skeleton that helps give the sponge its shape.

Next Generation Science Standards for this Video

Tiny spicules help make the sponge’s body rigid. They interlock to provide support like the bones in familiar animals.

Animation helps visualize how the elaborate shapes of the microscopic spicules could help give the sponge’s body structure.