Study Reveals Sea Urchins Have Brain-Like System Spread Across Their Whole Body

All bilateral creatures have some asymmetry, such as the human heart being located slightly to the left and the liver being ...
Phys.org

500-million-year-old fossil reveals how starfish got their shape

A 500-million-year-old fossil from Morocco, discovered by Natural History Museum scientists, is offering extraordinary new insights into one of evolution's most puzzling transformations: how ...
insider.si.edu

Zorocallida, new order, and Doraster constellatus, new genus and species, with notes on the Zoroasteridae (Echinodermata: Asteroida) / [by] Maureen E. Downey

During a study of the Asteroidea of the Caribbean and Gulf of Mexico, a new genus of the family Zoroasteridae was discovered. A general survey of the family revealed apparent relationships with the ...
insider.si.edu

Two New Brittle Star Species of the Genus Ophiothrix (Echinodermata: Ophiuroidea: Ophiotrichidae) From Coral Reefs in the Southern Caribbean Sea, With Notes on Their Biology

Hendler, Gordon L. 2005. "Two New Brittle Star Species of the Genus Ophiothrix (Echinodermata: Ophiuroidea: Ophiotrichidae) From Coral Reefs in the Southern Caribbean Sea, With Notes on Their Biology.
Nature

Echinoderm Immunology and Gene Diversity

Echinoderms, including sea urchins and sea cucumbers, offer a unique window into the evolution of innate immunity. Their immune systems operate without the classical adaptive components seen in ...