Cushion starfish is a catch-all term for a variety of starfish species. They are distinctive for their rounded bodies and short arms. The round shape is built on a calcium-rich structure that defends ...

An unassuming starfish species found around the world has a shocking amount of DNA hidden inside its cells. The brooding brittle star (Amphipholis squamata), which has a tiny disk-shaped body and long ...

A square starfish may seem like a contradiction, but such creatures do exist. While it may sound unreal, these strangely shaped starfish are rare but do exist in the ocean. There are a few reasons why ...

Starfish are classed as echinoderms, a word which comes from the Ancient Greek for “hedgehog skin.” There are many types of starfish and this one is particularly adapted to living in sandy, muddy ...

A close examination of a collection of starfish in the Smithsonian revealed even more starfish inside those starfish. By Darren Incorvaia Christopher Mah, a biologist at the Smithsonian, was scouring ...

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Sunflower sea stars, the largest of sea stars, were formerly common in tide pools in Oregon. However, this species has suffered from sea star wasting syndrome for over a decade, which has resulted in ...

“There’s been a lot of work over the years on vision in a variety of fish from shallow water to the deep sea, but there hasn’t been much at all done on vision in animals that sit on the bottom,” says ...

With a large variety of starfish in the ocean, there are many unique appearances that can be surprising. One example is the cushion starfish. These marine animals are famous for their inflated bodies ...

Add Yahoo as a preferred source to see more of our stories on Google. Square-shaped starfish are usually cushion starfish, whose rounded, inflated bodies can appear angular in rare cases. Unusual ...