Tag - squid

Friday Squid Blogging: Squid Camouflage
New research: > Abstract: Coleoid cephalopods have the most elaborate camouflage system in the > animal kingdom. This enables them to hide from or deceive both predators and > prey. Most studies have focused on benthic species of octopus and cuttlefish, > while studies on squid focused mainly on the chromatophore system for > communication. Camouflage adaptations to the substrate while moving has been > recently described in the semi-pelagic oval squid (Sepioteuthis lessoniana). > Our current study focuses on the same squid’s complex camouflage to substrate > in a stationary, motionless position. We observed disruptive, uniform, and > mottled chromatic body patterns, and we identified a threshold of contrast > between dark and light chromatic components that simplifies the identification > of disruptive chromatic body pattern. We found that arm postural components > are related to the squid position in the environment, either sitting directly > on the substrate or hovering just few centimeters above the substrate. Several > of these context-dependent body patterns have not yet been observed in ...
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squid
academic papers
Friday Squid Blogging: Giant Squid Eating a Diamondback Squid
I have no context for this video—it’s from Reddit—but one of the commenters adds some context: > Hey everyone, squid biologist here! Wanted to add some stuff you might find > interesting. > > With so many people carrying around cameras, we’re getting more videos of > giant squid at the surface than in previous decades. We’re also starting to > notice a pattern, that around this time of year (peaking in January) we see a > bunch of giant squid around Japan. We don’t know why this is happening. Maybe > they gather around there to mate or something? who knows! but since so many > people have cameras, those one-off monster-story encounters are now caught on > video, like this one (which, btw, rips. This squid looks so healthy, it’s > awesome)...
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squid
video
Friday Squid Blogging: Vampire Squid Genome
The vampire squid (Vampyroteuthis infernalis) has the largest cephalopod genome ever sequenced: more than 11 billion base pairs. That’s more than twice as large as the biggest squid genomes. It’s technically not a squid: “The vampire squid is a fascinating twig tenaciously hanging onto the cephalopod family tree. It’s neither a squid nor an octopus (nor a vampire), but rather the last, lone remnant of an ancient lineage whose other members have long since vanished.” As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered...
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squid