4. They Have Many Nicknames In the U.S., the common name for the Echinarachnius parma species is "eccentric sand dollar," or simply "sand dollar" for short. The name derives from the animal's ...

“You’re trying to minimize drag. That’s what sand dollars have done.” And similar to a spoiler on a car, many species have specialized holes in their skeletons known as lunules, which help equalize ...

Larval cloning has been observed previously among echinoderms, which include about 7,000 species of sea creatures, including starfish, sea urchins and sand dollars. However, this is the first time ...

“They’re gills, basically,” he says. The sand dollars scattered over Ocean Beach are a species called Dendraster excentricus, and a few things set them apart from the 150-or-so other sand ...

OLYMPIA — A Washington man found one of the largest sand dollars of its species on a Washington beach. The Olympian reported Eric Talaska was beachcombing at low tide last week on Puget Sound ...

Even though the keyhole urchin is more closely related to the common sand dollar than an urchin, they are not the same species. What people find on the beaches of Florida are not sand dollars.

the exterior of the Pacific species' calcium carbonate shell is covered in millions of hair-like spines known as “cilia” that help them move across the seafloor. A sand dollar is alive when ...

Among paleontologists, the peculiar shape of the shell is a dead giveaway as to the species. The presence of the oysters and sand dollars so far from the present day coastline has helped ...

They almost always only affect the newest generation of sand dollar and rarely include adults in large numbers.” She said it means there's "likely a natural boom-and-bust cycle of the species ...