Coordinated Hunting in Red Devils
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With just reason Humboldt or Jumbo Squid are called Diablo Rojo. The skin of Dosidicus gigas is blood red but can change to bone white. These massive squids, the third largest of all squids, forage for prey in the dark of night, which they take down with two long tentacles covered in teeth. If the . . . → Read More: Coordinated Hunting in Red Devils

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These Arms Were Made For Walking
These Arms Were Made For Walking avatar

Unlike their Echinoderm brethren, brittle stars do not move along on tube feet that can propel them in any direction. Instead, brittle stars ‘walk’. This mode of movement by brittle stars is even more astonishing when it is considered that brittle stars, like all echinoderms, are not bilaterally symmetrical, i.e mirror imaged halves. All . . . → Read More: These Arms Were Made For Walking

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A Lonely Tree Far From Home Brings New Life to the Ocean Deep: A Narrative in Five Acts
A Lonely Tree Far From Home Brings New Life to the Ocean Deep: A Narrative in Five Acts avatar

Act 1: Wood Falling on Water At two miles below the ocean’s surface, I see wooden carcasses, once buoyant, lying listlessly on the abyssal seafloor. They range from small fragments to 2000+ pound behemoths. Ligneous cadavers litter the seafloor, a last resting place for visitors from a faraway and drier place, becoming rare as . . . → Read More: A Lonely Tree Far From Home Brings New Life to the Ocean Deep: A Narrative in Five Acts

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Turf wars
Turf wars avatar

Battle lines are drawn and chemical warfare commences between alga (left) and coral (right). Img: Jennifer Smith I was lucky enough to attend an all-day workshop today, just down the road at Georgia Tech, where Prof. Mark Hay organised the Teasley Symposium on the interactions between corals and seaweeds on reefs. Like many, I was . . . → Read More: Turf wars

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TGIF – Ctenophore Photonics Beat Jazz
TGIF – Ctenophore Photonics Beat Jazz avatar

CreatureCast – Ctenophore Photonics from Casey Dunn on Vimeo.

Cool as a sea cucumber: life (and death) at extraordinary deep sea pressures
Cool as a sea cucumber: life (and death) at extraordinary deep sea pressures avatar

Edit – In the original article I said that the sphere of the Deep Challenger was made of titanium. In fact, it’s made of steel. My bad! In trying to explain to friends, colleagues and Twitter followers during recent days what James Cameron may have seen out that softball-sized window of the Deep Challenger submersible . . . → Read More: Cool as a sea cucumber: life (and death) at extraordinary deep sea pressures

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TGIF – Exallias brevis, a very special fish
TGIF – Exallias brevis, a very special fish avatar

Exallias brevis male My good colleague Dr. Bruce Carlson just uploaded a very nice short YouTube video about a reef blenny called Exallias brevis. Exallias is fairly special (but by no means unique) not just because it’s quite the looker, but because it is a coral predator. Like many blennies it has a mouth that . . . → Read More: TGIF – Exallias brevis, a very special fish

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Veins of Water: The Evolution of the Echinoderm Water-Vascular System
Veins of Water: The Evolution of the Echinoderm Water-Vascular System avatar

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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What knowledge of the deep sea tell us about life on other planets
What knowledge of the deep sea tell us about life on other planets avatar

We as humans have three fundamental questions. Where do we come from? Where are we going? Are we alone in the universe? The answers to these thrust at the core of our humanity and uniqueness. Through science we seek out replies to these inquiries. The Drake Equation In 1960 the National Academy of Sciences asked . . . → Read More: What knowledge of the deep sea tell us about life on other planets

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10 Ocean Species Every Man Should Love: Part 2
10 Ocean Species Every Man Should Love: Part 2 avatar

After your comments on the last post and deliberation by a crack team of judges that included myself and some fellas named Evan, Jack, and Jim here are the top 5 manliest species. Adam Etzion wrote this about the Vampire Squid in the comments of the last post Sit back, swish that bourbon around and . . . → Read More: 10 Ocean Species Every Man Should Love: Part 2

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