Scientists discovered a 480-million-year-old phosphatic sponge in South China, making it the oldest known stromatoporoid and ...

But some of the massive, velvety echinoderms began the spawning process spontaneously — three days before the group would arrive. "The nice thing is they had six males go off, and so [with] all that ...

Professor Lars Schmitz joins WIRED to guide us through a giant tree of life mapping the evolution of eyes in the animal ...

A human appetite hormone, bombesin, also controls feeding in starfish, showing it evolved over 500 million years ago. A team of biologists at Queen Mary University of London has discovered that a ...

Keywords echinoderms, sea stars, sea urchins, sand dollars, radial symmetry, spiny skin, water vascular system, locomotion, feeding habits, regeneration, reproduction, scientific research Email us ...

Srivastava noted that studying this rearrangement can provide important insights about the role of this gene cluster in echinoderms. “Hox genes seem to have a lot of constraint across evolution,” said ...

Classical conditioning has been demonstrated in a handful of previous studies in starfish. But most echinoderms -- a group of some 7,000 species that includes brittle stars and similarly brainless ...

However, new research finds that sea cucumbers are the only echinoderms—and among the only animals on Earth—that produce chemicals called triterpenoid saponins, which don’t poison the sea cucumbers ...

Figure 1. Flow chart of the study’s procedures. The discovery of the novel tilapia parvovirus HMU-HKU and the prevalence rate of tilapia parvovirus HMU-HKU among crocodiles and tilapia in different ...