A feather star clings to a coral in the Bay of Bengal at Saint Martin's Island. Also known as crinoids, these fascinating marine creatures are found in oceans worldwide, primarily in tropical and subtropical regions. They inhabit various environments, from shallow coral reefs to deep-sea habitats. With their distinctive, feathery appearance and branched arms, feather stars capture food particles from the water. Despite lacking hearts, eyes, and brains, they can "walk" along the seafloor using their flexible arms, and are capable of regenerating lost limbs. Sensory organs located along their arms help them detect environmental changes, allowing them to avoid danger or locate food. Their bodies display pentameral symmetry, meaning they are structured in fives or multiples of five. Feather stars play a crucial role in maintaining aquatic ecosystem health. As filter feeders, they help keep water clear and of high quality. However, these unique creatures face threats from habitat destruction, pollution, and climate change.

PHOTO: SHARIF SARWAR