Brittle stars (Class Ophiuroidea) represent a remarkably diverse group of echinoderms with an extensive fossil record that has long provided insight into marine evolution and biogeography. Recent ...

Biologists have discovered that brittle stars—a sea creature with no brain—can still learn things, but we don't know how. Brittle stars are relatives of the starfish, and similarly, have no head at ...

Scientists found a five-armed sea creature along the coast of Mexico and discovered a new species misidentified for 160 years, a study said. Photo from Paweł Kozak via Unsplash Along the western coast ...

DURHAM, N.C. -- We humans are fixated on big brains as a proxy for smarts. But headless animals called brittle stars have no brains at all and still manage to learn through experience, new research ...

As mist lingers over a Swedish fjord lined with towering, forested cliffs, a group of scientists collect mud from the bottom of the turquoise-colored waters. They’re after brittle stars—marine animals ...