The brittle star specimen suggests that the sea creatures have been splitting themselves in two to reproduce for more than 150 million years. By Jack Tamisiea Some brittle stars give an arm and a leg ...

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 ...

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 ...

Growth bands are evident in sections of the radial shields of Astrobrachion constrictum and on direct examination of dissected material. These bands result from the sequential addition of scales to ...

The burrowing brittle star Hemipholis elongata (Say) possesses hemoglobin-containing coelomocytes (RBCs) in its water vascular system. The RBCs, which circulate between the arms and body, are thought ...