Asteroidea

: Most species can regenerate lost arms; in some cases, a single separated arm can grow into a new sea star if part of the central ring nerve canal is attached. Ecological & Human Impact

: Most sea stars exhibit a distinctive starlike shape with five arms arranged around a central disc. However, some species can have up to 50 arms . asteroidea

: They lack a centralized brain but have a complex nervous system, including light-sensitive eye spots at the tips of their arms. : Most species can regenerate lost arms; in