Graphic used with permission. Daniel D. Brown, LaughingMantis.com. Echinoderms are one of the most highly derived groups of animals with many species as significant components of several marine communities. They’re classified by three fundamental shared characteristics: 1) pentaradial symmetry, 2) skeleton made of three-dimensional calcitic elements, and 3) the presence of a water . . . → Read More: Veins of Water: The Evolution of the Echinoderm Water-Vascular System
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By Kevin Zelnio, on  March 20th, 2012  One comment  Adaptations, Evolution, Paleobiology  Echinodermata, echinoderms, Evolutionary History, fossil, Madreporite, Phylogeny, Radial Symmetry, Water Vascular System, Xyloplax By Dr. M, on May 8th, 2011 One comment Adaptations, Biology, Ecology, Evolution, Mating & Reproduction, New Research, Organisms development, Echinodermata, Phylogenetics, progensis, woodfall, Xyloplax Not your typical Echinoderm. This female specimen of a Xyloplax seastar was collected along the Juan de Fuca Ridge off the coast of the state of Washington; it measures less than a quarter-inch (4 mm) and shows brooded embryos Some of us never grow up. In fact I am writing this now in my Aquaman . . . → Read More: Some Echinoderms Will Never Grow Up
By Dr. M, on May 8th, 2011 One comment Carnivals & Link Love, Cephalopods, Organisms, Pictures and Movies, Reviews Echinodermata, illustration, Mollusca BibliOdyssey is always full eclectic book art. Just what you need to achieve your geek fix for today. Behold the illustrations from ’Dictionnaire Classique Des Sciences Naturelles’ [1853] by PAJ Drapiez. Drapiez’s ‘Dictionnaire Classique Des Sciences Naturelles’ is ostensibly an homage to the evolving scientific literature of the Enlightenment and the author was . . . → Read More: The Kingdoms of Science
Daniel Brown brought my attention to this Ocean Portal video featuring the Echinoblog’s Chris Mah on the potential impact of oil on the Gulf of Mexico’s marine invertebrates. (The video also features Daniel’s original echinoart!) For more on oil impacts, see Dr Bik’s recent posts on dispersant toxicity. . . . → Read More: Chris Mah on Oil’s Impact on Marine Invertebrates
By Dr. M, on July 9th, 2009 Leave a comment Adaptations, Coral, Mating & Reproduction, New Research, Organisms, Seeps, Vent, & Whale Falls brittle star, Coral, Echinodermata, marriage, mooching, mutualism, Octocoral, settlement, Settlement Cue, suspension feeding Brittle star (red) entwines the branches of its lifelong coral partner (pink). Credit: L. Watling for NOAA/IE/URI I mean it, FOREVER! No paper out yet but the abstract has sufficiently enticed me. Mosher and Watling report that the species Phiocreas oedipus, an echinoderm that kills its father and marries it mother, is only found on . . . → Read More: Coral and Brittle Stars, Together Forever
By Dr. M, on June 26th, 2009 Leave a comment Biology, Mating & Reproduction, Organisms, Pictures and Movies animation, development, Echinodermata, starfish This animation from Daniel Brown at Biochemical Soul makes me come close to actually liking echinoderms. Well..at least I still like them more than mammals. Seriously, a great animation that clearly illustrates the development of starfish. . . . → Read More: TGIF: Echinoderms Aren’t So Bad
By Kevin Zelnio, on May 20th, 2009 Leave a comment Carnivals & Link Love, Mating & Reproduction Catalogue of Organisms, echinoblog, echinoderm, Echinodermata, Epitoke, Polychaete, Sex Week Christopher Taylor at the Catologue of Organisms (one of the handful of blogs I rush to when I see an update in my Reader!) has a post on a really unique reproductive strategy in polychaetes, called epitoky, in the awesomely titled My Genitals Just Grew Eyes and Swam Away. Its quite astonishing, especially the bit . . . → Read More: It Must Be “Hump” Day in the Blogosphere
By Dr. M, on February 22nd, 2009 12 comments Opinion & Editorial, Organisms Annelida, Barnacle, Cephalopod, Coral, deep sea, Echinodermata, feeding, fish, Giant Isopod, girlfriends, Invertebrate, Octopus, puppies, rotifer, salmon, sex, shark, sponge, video In no certain order… 10. Those barnacles just ain’t feeding! This is red hot barnacle copulation! Turn the lights down low, everything’s goin’ to be just right… 9. Humboldt Squid are vicious, blood thirsty demons ready to rip the flesh off any living creature. Of course I tend toward exaggeration 8. Beautiful? Definitely! Slow? Stunningly! . . . → Read More: The 10 Greatest Web Videos of Marine Invertebrates
By Kevin Zelnio, on January 31st, 2009 Leave a comment Carnivals & Link Love Agassiz, BibliOdyssey, Echinodermata, Sand Dollar, Sea Urchin BibliOdyssey has some beautiful plates of echinoderms from manuscripts by Louis Agassiz from the 1840s. Check out their site for more and where to go to see the full works online. Sand dollar, more or less a flattened sea urchin. For more echinoderm fun, always check out the ECHINOBLOG! . . . → Read More: Echinodermata Monographs
By Kevin Zelnio, on January 19th, 2009 8 comments Gadgets & Gear, Organisms Annelida, Calender, Clock, Crustacea, Echinodermata, Entoprocta, Hydroid, Invertebrate, Mollusca, Octopus, SCAMIT SCAMIT (Southern California of Marine Invertebrate Taxonomists) has released the best calender of the year – a marine invertebrate calendar! Long time DSN reader Leslie Harris works at the Natural History Museum of Los Angeles County and put together this calendar to help support, “a non-profit dedicated to educating & supporting local taxonomists.” Not only . . . → Read More: Kick off ’09 with a Marine Invert Calendar and Clock
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