This post was based on a talk I gave for Darwin Day last year at the Duke Marine Lab. Reposting in honor of Darwin Day. Enjoy your day and make sure you take a walk in the woods and enjoy nature’s splendor in honor one of biology’s main men today! —————————————- As part of Darwin . . . → Read More: Darwin Day Repost – Ex Omnia Conchis: Darwin And His Beloved Barnacles
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By Kevin Zelnio, on  February 12th, 2011  3 comments  Evolution, Social Sciences  Archetype, Barnacle, Best of Zelnio, Charles Darwin, Cirripedes, Cryptophialus, Darwin, Darwin Day, Erasmus Darwin, evolution, Hermaphroditism, HMS Beagle, Homology, John Hooker, Lamarck, Mr. Arthrobalanus, On the Origin of Species, Richard Owen, Robert Chambers, taxonomy, Vestiges, Zoonomia By Kevin Zelnio, on January 10th, 2011 3 comments Adaptations, Evolution, New Research, Seeps, Vent, & Whale Falls Barnacle, Best of Zelnio, Darwin, evolution, Hydrothermal Vent, Morphology, Phylogenetics, shell, Stalked Barnacle, Systematics, taxonomy Lepas anatifera from Washington state, USA. Photo credit: David Cowles 1997. Barnacle evolution was recently rewritten by a large effort of Perez-Losada and colleagues in 2008. Using a combination of genes and morphological traits they rejected some of the ideas that were foundational to barnacle biology and taxonomy, while giving new support for other . . . → Read More: Barnacle Evolution I: Phylogeny Served Without Plates
This gem courtesy of Herr Doktor Byrnes. Too bad they didn’t mention the barnacle’s other famous attribute. By Dr. M, on July 19th, 2010 Leave a comment Expeditions, New Research, Organisms, Seamount Barnacle, cirri, exploration, indonesia, Kawio Barat, NOAA, Okeanos Explorer, Seamount, Sulawesi, Volcano This is a perspective view of the Kawio Barat (West Kawio) seamount looking from the northwest. The underwater volcano rises around 3,800 meters from the seafloor. Credit: Image courtesy of INDEX 2010: “Indonesia-USA Deep-Sea Exploration of the Sangihe Talaud Region.” The join Indonesia – U.S. exploration of the deep ocean north of Sulawesi, Indonesia mapped . . . → Read More: Update on NOAA Expedition in the Indian Ocean
By Kevin Zelnio, on February 16th, 2010 14 comments Mating & Reproduction, Organisms, Social Sciences Archetype, Barnacle, Best of Zelnio, Charles Darwin, Cirripedes, Cryptophialus, Darwin Day, Erasmus Darwin, evolution, Hermaphroditism, HMS Beagle, Homology, John Hooker, Lamarck, Mr. Arthrobalanus, On the Origin of Species, Richard Owen, Robert Chambers, taxonomy, Vestiges, Zoonomia This awesome design is a t-shirt you can buy from Zazzle!! (click on image) As part of Darwin Day on Friday, I gave a brief talk at Duke Marine Lab during happy hour about Darwin and his beloved barnacles. I was going to post the slides but didn’t think they did the 201 year legacy . . . → Read More: Ex Omnia Conchis: Darwin and His Beloved Barnacles
By Kevin Zelnio, on September 4th, 2009 Leave a comment Expeditions, Geology, Organisms Asteroid, Barnacle, Caldera, Coral, echinoderm, Gastropod, Gorda Ridge, Hydrothermal Vent, inactive hydrothermal vents, invertebrates, Juan de Fuca, lava flow, North Cleft, President Jackson Seamount, Rusticles, Sea Star, stormy seas, Weather [mappress] Yellow feather star (comatulid crinoid). Photo courtesy of MBARI. We dove Wednesday on North Cleft (45.030268, -130.182166), a massive ravine over 100 meters deep and a few hundred meters wide formed by the spreading of the Juan de Fuca and Pacific Plates. At 2.5 kilometers depth, we explored three inactive hydrothermal vents, the tallest . . . → Read More: NE Pacific Expedition Day 8 & 9
By Dr. M, on May 20th, 2009 2 comments Mating & Reproduction, Organisms Barnacle, Randy Olson, sex, Sex Week No sex week would be complete without the showing of Randy Olson’s seminal film, Barnacles Tell No Lies (1991) By Dr. M, on May 20th, 2009 11 comments Adaptations, Mating & Reproduction, Organisms Barnacle, chemical signals, competition, Crustacea, Eric Charnov, evolution, Hermaphrodites, Matt Hoch, Penis, Sex Week, sperm, thesis Two barnacles removed from a rock. The barnacle on top has been fertilized and the eggs are compressed into yellow pellets on either side of the body. The penis is sticking out from in between. The barnacle below has not been fertilized; the un-fertilized eggs are large yellow blobs. The testes are visible in both . . . → Read More: On the study of crustaceous genitalia
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 June 17th, 2008 9 comments Mating & Reproduction, New Research, Organisms Barnacle, Best of Zelnio, Hermaphrodites, Long Island, Mating, New York, Penis, Reproduction, Rocky Intertidal, Seasonality, Semibalanus, Sessile, Sex Allocation Theory, Trade-Offs, Wave Exposure Spring is in the air! Its the time of year to release your gametes into the water and make baby barnacles. But wait a second, you are a permanent fixture on a rock. Can’t move. What is a young, lovestruck sessile she-male to do? Well, if you are hung like a barnacle you don’t really . . . → Read More: Environment Shapes Barnacle Penis
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