octopus   1532

« earlier    

MDMA Makes Octopuses Want to Mingle, Too
Eric Edsinger is an octopus researcher at the University of Chicago who recently helped sequence the genome of Octopus bimaculoides—the California two-spot octopus. Like most octopuses, this color-changing cephalopod is asocial, meaning it likes to be alone most of the time, unless it’s trying to mate. But when given MDMA, a drug well known for boosting emotional empathy and prosocial behavior in humans (i.e. making you really, really want to fraternize), these octopuses also seemed to want to hang out with each other, even if they weren’t trying to find a mate.
MDMA  entactogen  octopus  cephalopods  empathy  Edsinger  2018 
4 days ago by zzkt
You're Not Hallucinating. That's Just Squid Skin. | Deep Look - YouTube
"Octopuses and cuttlefish are masters of underwater camouflage, blending in seamlessly against a rock or coral. But squid have to hide in the open ocean, mimicking the subtle interplay of light, water, and waves. How do they do it? (And it is NOT OCTOPI)"

"--- How do squid change color?

For an animal with such a humble name, market squid have a spectacularly hypnotic appearance. Streaks and waves of color flicker and radiate across their skin. Other creatures may posses the ability to change color, but squid and their relatives are without equal when it comes to controlling their appearance and new research may illuminate how they do it.

To control the color of their skin, cephalopods use tiny organs in their skin called chromatophores. Each tiny chromatophore is basically a sac filled with pigment. Minute muscles tug on the sac, spreading it wide and exposing the colored pigment to any light hitting the skin. When the muscles relax, the colored areas shrink back into tiny spots.

--- Why do squid change color?

Octopuses, cuttlefish and squid belong to a class of animals referred to as cephalopods. These animals, widely regarded as the most intelligent of the invertebrates, use their color change abilities for both camouflage and communication. Their ability to hide is critical to their survival since, with the exception of the nautiluses, these squishy and often delicious animals live without the protection of protective external shells.

But squid often live in the open ocean. How do you blend in when there's nothing -- except water -- to blend into? They do it by changing the way light bounces off their their skin -- actually adjust how iridescent their skin is using light reflecting cells called iridophores. They can mimic the way sunlight filters down from the surface. Hide in plain sight.

Iridophores make structural color, which means they reflect certain wavelengths of light because of their shape. Most familiar instances of structural color in nature (peacock feathers, mother of pearl) are constant–they may shimmer when you change your viewing angle, but they don't shift from pink to blue."
chromatophores  2015  squid  octopus  cuttlefish  camouflage  classideas  science  multispecies  nature 
10 days ago by robertogreco
Biologists Have Discovered an Underwater Octopus City And They're Calling It Octlantis
At the end of last year, scientists discovered a small octopus city – dubbed Octlantis – a find that suggests members of the gloomy octopus species (Octopus tetricus) are perhaps not the isolated and solitary creatures we thought they were.
additivism  cephalopod  cthulhucene  life  nature  ocean  octopus  sea  stream 
8 weeks ago by therourke
They’re not in the best mood. Idk why but I decided to make a grumpy merm for -
octopus  mermaid  merms  mermay  from twitter_favs
may 2018 by jamuraa
Day 10 + +Floral 👩🏻‍🎨 prompts lists by: , and
Octopus  Sweetheart  from twitter_favs
may 2018 by jamuraa
Octopuses on MDMA
Octopuses on MDMA: SLC6A4 binding site and acute prosocial effects of (+/-)-3,4-methylendio…
mdma  mind  science  dream-team  octopus  research  from twitter_favs
may 2018 by levleviev
Cause of Cambrian Explosion - Terrestrial or Cosmic?
We review the salient evidence consistent with or predicted by the Hoyle-Wickramasinghe (H-W) thesis of Cometary (Cosmic) Biology. Much of this physical and biological evidence is multifactorial. One particular focus are the recent studies which date the emergence of the complex retroviruses of vertebrate lines at or just before the Cambrian Explosion of ∼500 Ma. Such viruses are known to be plausibly associated with major evolutionary genomic processes. We believe this coincidence is not fortuitous but is consistent with a key prediction of H-W theory whereby major extinction-diversification evolutionary boundaries coincide with virus-bearing cometary-bolide bombardment events. A second focus is the remarkable evolution of intelligent complexity (Cephalopods) culminating in the emergence of the Octopus. A third focus concerns the micro-organism fossil evidence contained within meteorites as well as the detection in the upper atmosphere of apparent incoming life-bearing particles from space. In our view the totality of the multifactorial data and critical analyses assembled by Fred Hoyle, Chandra Wickramasinghe and their many colleagues since the 1960s leads to a very plausible conclusion – life may have been seeded here on Earth by life-bearing comets as soon as conditions on Earth allowed it to flourish (about or just before 4.1 Billion years ago); and living organisms such as space-resistant and space-hardy bacteria, viruses, more complex eukaryotic cells, fertilised ova and seeds have been continuously delivered ever since to Earth so being one important driver of further terrestrial evolution which has resulted in considerable genetic diversity and which has led to the emergence of mankind.
aliens  octopus  octopi 
may 2018 by josephaleo

« earlier    

related tags

0817  082317  2015  2017-09-18  2017-09-20  2017-09-22  2017-09-24  2018-05  2018-07  2018  2wt  aceo  additivism  alibaba  aliens  amia-srinivasan  amiasrinivasan  animal  animalhistory  animalintelligence  animals  anomalies  archaeology  arms.trade  art  articles  astrobiology  audit  beauty  behavior  biology  bioluminesnce  bird  body  books  boundaries  brain  build  camouflage  cephalopod  cephalopods  chromatophores  ci  city  classideas  clipard  cocish  cognition  colony  consciousness  crab  cthulhucene  cuddly  custom  cute  cuttlefish  danielsmithwatercolor  deep  deployment  devops  docker  doom  dream-team  drugs  dss  dts18  earth  ecology  edsinger  embodied-cognition  empathy  engineered  engineering  entactogen  erikamoen  ethics  evolution  extraterrestrial  fish  food  forest  frog  fun  genetics  genome  haeckel  hongkong  horror  hunt  ifttt  illustration  india  ink  inktober  inktober2017  insects  insta  intelligence  intelligenz  interaction  international  japan  knitting  life  lizard  lobbying  londonreviewofbooks  m-commerce  marine.biology  marine  mdma  mermaid  mermay  mermay2018  merms  mind  multispecies  mused_comic  nature  neurobiology  neuroscience  notes  ocean  oceans  octlantis  octopi  pakistan  paperbox  papersculpture  payments  pci  personal_net  philosophy  photo  photography  pocket  podesta.group  predator  predators  pressurecooker  print  psudoscience  reading  recipe  recommendedreading  redsea  release  rescue  research  review  robotics  sciart  science  sea  security  see  sentience  sex  sharks  sky  sleep  social  society  sound  squid  stream  sweetheart  teamcity  tentacle  tentacles  tfs  totwitter  tumblr  underwater  usa  video  wales  war  watercolor  weapons  wechat  weird  wood  work  workitem  youtube  zoology 

Copy this bookmark: