Starfish belong to the class Asteroidea.

They are also known as sea stars.

Starfish are marine invertebrates with a radial symmetry.

They can have various colors, including red, orange, and yellow.

Starfish have a unique water vascular system for movement and feeding.

They can regenerate lost arms, and some species can even regenerate an entire body.

Starfish arms contain tube feet that help in locomotion and capturing prey.

The central body of a starfish is called the central disc.

Starfish have a tough outer skin, often covered in spines or granules.

They primarily feed on mollusks, small fish, and detritus.

Starfish have a specialized stomach that can be everted to digest food outside their body.

Some species of starfish can push their stomach through a small opening to feed on bivalve mollusks.

Starfish are found in various ocean depths, from shallow waters to deep-sea environments.

They are known for their ability to cling to rocks and other surfaces using tube feet.

Starfish are important marine predators, helping control populations of other marine organisms.

Certain species of starfish are known for their preference for coral reefs.

Starfish are sensitive to changes in water temperature and quality.

Starfish do not have a brain, but they have a complex nerve net.

They are capable of sensing light and differentiating between light and dark.

Starfish use their tube feet to open shellfish and access the soft tissues inside.

Some species of starfish have specialized sticky tube feet for capturing prey.

Starfish have tiny eyespots at the end of each arm that detect light.

They are capable of both sexual and asexual reproduction.

Starfish larvae undergo a free-swimming phase before settling on the ocean floor.

Certain species of starfish are known for their striking patterns and colors.

Starfish are vulnerable to changes in their habitat, including pollution and habitat destruction.

They play a vital role in maintaining the balance of marine ecosystems.

Starfish are often used in marine biology studies due to their regenerative abilities.

They are ancient animals, with a fossil record dating back to the Ordovician period.

Starfish are often encountered in tide pools and rocky shorelines.

They are admired for their graceful and slow movement along the ocean floor.