Leather Star

Fascinating facts about the Leather Star

• A leather star can flip its stomach inside out through its mouth and wrap it around a mussel or clam without opening the shell — then dissolve the prey from the outside before retracting its stomach back in. This is not a last resort. It's their primary hunting method, perfected over millions of years.
• Unlike most starfish with rigid arms, leather stars have a leathery, wrinkled skin that lets them squeeze through cracks the width of a pencil to hunt in spaces other predators cannot reach. Their flexibility is their invisibility.
• A leather star's tube feet — tiny suction-cup legs underneath its arms — can sense chemicals in seawater and follow a scent plume to prey in complete darkness, working like a bloodhound's nose but spread across 100+ individual tubes.
• The leather star's scientific name, Dermasterias imbricata, comes from its overlapping scales that look like roof tiles when viewed under magnification. This layered armour gives it both flexibility and protection from the spiky urchins and anemones that share its rocky reef home.
• Found only along the Pacific coast of North America down to depths of 100 metres, the leather star is a living fossil blueprint — its hunting method unchanged for at least 150 million years, making it older than the extinction that wiped out the dinosaurs.

At a glance

About the Leather Star

In the dimly lit recesses of the ocean floor, the leather star unfurls its delicate, lacy arms, as if embracing the shadows themselves. With a gentle, almost ethereal motion, it glides across the substrate, its soft, flexible body undulating like a dark, underwater flower, leaving behind a trail of subtle, whispered impressions in the sediment. As it moves, the intricate patterns of its arms seem to shift and shimmer, like the faint, whispered secrets of the deep.

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