Quick Facts
Type: Echinoderm
Diet: Omnivore: Seaweed, limpets, barnacles, detritus
Average lifespan: 30 years
Average size: Up to 20 cm
Average weight: Unknown
Did You Know?
Tiny worms called annelid worms live in grooves on the underside of the bat star's arms and eat the bits of food left over by the sea star.
Last updated: November 9, 2018