Acorn worms, also known as enteropneust (literally, ‘gut-breathing’) hemichordates, are marine invertebrates that share features with echinoderms and chordates. Together, these three phyla comprise ...

From the microscopic to the complex, invertebrates hold remarkable biological strategies for survival, adaptation, and regeneration. Recent research is uncovering how their developmental mechanisms, ...

The study outlines a new scenario for understanding how genome regulation and chromatin organization influence the evolution of animal body plans. The conservation of genome regulatory elements over ...

The end-Paleozoic witnessed the most devastating mass extinction in Earth's history so far, killing the majority of species and profoundly shaping the evolutionary history of the survivors.

The conservation of genome regulatory elements over long periods of evolution is not limited to vertebrates, as previously thought, but also in echinoderms (invertebrates). This is one of the most ...

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 ...

Sea stars and their relatives eat, breathe and scuttle around the seafloor with tiny tube feet. Now researchers have gotten their first-ever look at similar tentacle-like structures in an extinct ...

Echinoderms are a phylum of exclusively marine deuterostome invertebrates characterized by pentaradial symmetry in adults, a calcareous endoskeleton composed of ossicles, and a unique water vascular ...

John and Vicki Pearse with former students at the 2017 NAEC meeting where they were honored. From left to right: Damhnait McHugh, James McClintock, Vicki Pearse, John Pearse, Benjamin Miner, Isidro ...

The Department of Invertebrate Zoology was created in 1965 by the separation of the Department of Zoology into vertebrate and invertebrate branches. The Divisions of Marine Invertebrates and Mollusks ...

image: These are paleozoic hangover asterozoans. Specimen repositories: MHI = Muschelkalkmuseum Ingelfingen; MnhnL = Natural History Museum Luxembourg. Figure courtesy B. Thuy et al., copyright The ...