Tag Archives: squid

Friday Squid Blogging: Giant Squid Genome Analyzed

Post Syndicated from Bruce Schneier original https://www.schneier.com/blog/archives/2020/01/friday_squid_bl_712.html

This is fantastic work:

In total, the researchers identified approximately 2.7 billion DNA base pairs, which is around 90 percent the size of the human genome. There’s nothing particularly special about that size, especially considering that the axolotl genome is 10 times larger than the human genome. It’s going to take some time to fully understand and appreciate the intricacies of the giant squid’s genetic profile, but these preliminary results are already helping to explain some of its more remarkable features.

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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Friday Squid Blogging: Giant Squid Video from the Gulf of Mexico

Post Syndicated from Bruce Schneier original https://www.schneier.com/blog/archives/2020/01/friday_squid_bl_710.html

Fantastic video:

Scientists had used a specialized camera system developed by Widder called the Medusa, which uses red light undetectable to deep sea creatures and has allowed scientists to discover species and observe elusive ones.

The probe was outfitted with a fake jellyfish that mimicked the invertebrates’ bioluminescent defense mechanism, which can signal to larger predators that a meal may be nearby, to lure the squid and other animals to the camera.

With days to go until the end of the two-week expedition, 100 miles (160 kilometers) southeast of New Orleans, a giant squid took the bait.

As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered.

Read my blog posting guidelines here.

Friday Squid Blogging: Triassic Kraken

Post Syndicated from Bruce Schneier original https://www.schneier.com/blog/archives/2019/11/friday_squid_bl_701.html

Research paper: “Triassic Kraken: The Berlin Ichthyosaur Death Assemblage Interpreted as a Giant Cephalopod Midden“:

Abstract: The Luning Formation at Berlin Ichthyosaur State Park, Nevada, hosts a puzzling assemblage of at least 9 huge (≤14 m) juxtaposed ichthyosaurs (Shonisaurus popularis). Shonisaurs were cephalopod eating predators comparable to sperm whales (Physeter). Hypotheses presented to explain the apparent mass mortality at the site have included: tidal flat stranding, sudden burial by slope failure, and phytotoxin poisoning. Citing the wackestone matrix, J. A. Holger argued convincingly for a deeper water setting, but her phytotoxicity hypothesis cannot explain how so many came to rest at virtually the same spot. Skeletal articulation indicates that animals were deposited on the sea floor shortly after death. Currents or other factors placed them in a north south orientation. Adjacent skeletons display different taphonomic histories and degrees of disarticulation, ruling out catastrophic mass death, but allowing a scenario in which dead ichthyosaurs were sequentially transported to a sea floor midden. We hypothesize that the shonisaurs were killed and carried to the site by an enormous Triassic cephalopod, a “kraken,” with estimated length of approximately 30 m, twice that of the modern Colossal Squid Mesonychoteuthis. In this scenario, shonisaurs were ambushed by a Triassic kraken, drowned, and dumped on a midden like that of a modern octopus. Where vertebrae in the assemblage are disarticulated, disks are arranged in curious linear patterns with almost geometric regularity. Close fitting due to spinal ligament contraction is disproved by the juxtaposition of different-sized vertebrae from different parts of the vertebral column. The proposed Triassic kraken, which could have been the most intelligent invertebrate ever, arranged the vertebral discs in biserial patterns, with individual pieces nesting in a fitted fashion as if they were part of a puzzle. The arranged vertebrae resemble the pattern of sucker discs on a cephalopod tentacle, with each amphicoelous vertebra strongly resembling a coleoid sucker. Thus the tessellated vertebral disc pavement may represent the earliest known self portrait. The submarine contest between cephalopods and seagoing tetrapods has a long history. A Triassic kraken would have posed a deadly risk for shonisaurs as they dove in pursuit of their smaller cephalopod prey.

As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered.

Read my blog posting guidelines here.

Friday Squid Blogging: Apple Fixes Squid Emoji

Post Syndicated from Bruce Schneier original https://www.schneier.com/blog/archives/2019/10/friday_squid_bl_698.html

Apple fixed the squid emoji in iOS 13.1:

A squid’s siphon helps it move, breathe, and discharge waste, so having the siphon in back makes more sense than having it in front. Now, the poor squid emoji will look like it should, without a siphon on its front.

As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered.

Read my blog posting guidelines here.