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Keyword: cephalopod

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  • Octopuses work together with fish to hunt—and the way they share decisions is surprisingly complex

    09/29/2024 7:54:38 PM PDT · by Red Badger · 73 replies
    Phys.Org ^ | September 30, 2024 | Culum Brown
    A new study published in Nature Ecology & Evolution lifts the veil on what happens when octopuses and fish hunt together. As it turns out, this cross-species relationship is more complex than anyone expected. Animals of the same species often cooperate—work together to reach some kind of goal. But it's relatively rare to find cooperation between individuals from different species. A classic example you'll be familiar with is the close relationship between dogs and humans, whether in the context of herding sheep or hunting. In these situations, the dog and the human work together to achieve a goal. That's mammals....
  • New Analysis Shows Chephalopod Genomes Are Even Weirder Than You'd Expect

    05/06/2022 10:08:22 AM PDT · by Red Badger · 21 replies
    https://www.sciencealert.com ^ | MAY 06, 2022 | TESSA KOUMOUNDOUROS
    width =65% The California two-spot octopus displaying its blue eyespot. (Judit Pungor/UC Berkeley) Squishy cephalopods never cease to amaze with their clever features, including brained arms, color-shifting camouflage, escape artistry, and puzzle-solving skills. New analyses of squid, octopus, and cuttlefish (coleoid) genetics reveal their genomes are just as deliciously weird as the animals themselves. The cephalopod genome "is incredibly churned up," says developmental biologist Caroline Albertin, who led one of two new studies identifying strange twists in these cephalopods' genetic histories. In a massive effort, Albertin and colleagues sequenced three soft-bodied cephalopod genomes: the California two-spot octopus (Octopus bimaculoides) –...
  • Giant Kraken Lair Discovered

    10/10/2011 6:55:25 AM PDT · by decimon · 54 replies
    Geological Society of America ^ | October 10, 2011 | Unknown
    Boulder, CO, USA - Long before whales, the oceans of Earth were roamed by a very different kind of air-breathing leviathan. Snaggle-toothed ichthyosaurs larger than school buses swam at the top of the Triassic Period ocean food chain, or so it seemed before Mount Holyoke College paleontologist Mark McMenamin took a look at some of their remains in Nevada. Now he thinks there was an even larger and more cunning sea monster that preyed on ichthyosaurs: a kraken of such mythological proportions it would have sent Captain Nemo running for dry land. McMenamin will be presenting the results of his...
  • Word For The Day, Wednesday, May 13, 2009 - calamari

    05/13/2009 6:04:45 AM PDT · by VRWCmember · 211 replies · 2,802+ views
    In order that we might all raise the level of discourse and expand our language abilities, here is the daily post of "Word for the Day". calamari • \kah-luh-MAHR-ee\ • noun squid used as food Example sentence: Ophelia tried fried calamari for the first time from a small seafood shack near the beach. Did you know? The word "calamari" was borrowed into English from 17th-century Italian, where it functioned as the plural of "calamaro" or "calamaio." The Italian word, in turn, comes from the Medieval Latin noun "calamarium," meaning "ink pot" or "pen case," and can be ultimately traced...
  • Geology Picture of the Week, March 5-11, 2006: Manticoceras (cephalopod) fossil