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Cuttlefish

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sunsplash1

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Cuttlefish! Amazing creatures. Photofore (sp?) skin. Have seen the spawning/ meeting grounds near (sort of, in the Australian form of near) adelaide.. Cuttlefish get a bit boisterous (as in riots of color) when they get together...



8)
 
Has anybody studied cuttlefish (of cephalopod) culture?

These creatures have a complex and diverse communication system made up of movement and their ability to make any part of or all of their bodies change into any colour or pattern.

They use this to communicate.

Highly sophisticated communication system - I would like to think somebody noticed it and studied it - and presented their findings to the world?

The more people do this, the more awareness is raised - I hope.
 
Behavior Brief
A round-up of recent discoveries in behavior research
By Hayley Dunning | July 8, 2012

Two-faced fish
Cuttlefish use a camouflage technique to deter potential competitors, splitting their skin pattern between a male side and a female side. The behavior, observed for the first time and reported last week (July 3) in Biology Letters, allows a male cuttlefish to court a female with his male-patterned side while throwing off other potential mates by showing them his female-patterned side.

Cuttlefish displaying dual patterns
CULUM BROWN, MACQUARIE UNIVERSITY

Cuttlefish change their patterns by shifting pigment-containing cells closer or further away from the surface of their skin. They were known to be able to show two patterns at once on different sides of their body, but when one researcher noticed in the lab’s aquarium that male fish were displaying a female pattern, he and colleagues combed through images of cuttlefish in the wild to look for patterns of behavior. In a group with one female and two males, the male closest to the female displayed the dual-gender pattern 39 percent of the time. Cuttlefish have one of the largest brain-to-body size ratios of any invertebrate, and the study’s authors believe the behavior is a mark of their complex social intelligence.
Click to expand...

http://the-scientist.com/2012/07/08/behavior-brief-20/
 
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Some Cuttlefish having a challenge over a lady Cuttlefish ... women huh ? .. "Leave it mate .. it's not worth it !!" ..

 
For further exploration ... Here are some miscellaneous Live Science articles about cuttlefish:

Color-Changing 'Sea Chameleons' Could Inspire New Military Camouflage
https://www.livescience.com/42971-cuttlefish-military-camouflage.html

Squidlike Creatures Turn Left to Avoid Predators
https://www.livescience.com/25452-cuttlefish-left-turns-avoid-predators.html

Cuttlefish Cuties: Photos of Color-Changing Cephalopods
https://www.livescience.com/18482-cuttlefish-camouflage-album.html

Cuttlefish Use Humanlike Vision to Choose Camouflage
https://www.livescience.com/18483-cuttlefish-vision-camouflage.html

Tricky Cuttlefish Put on Gender-Bending Disguise
https://www.livescience.com/21374-cuttlefish-gender-bending-disguise.html

Clever Cuttlefish 'Freeze' Bioelectric Fields to Avoid Predators
https://www.livescience.com/52956-cuttlefish-freeze-bioelectric-fields.html

Vicious Cuttlefish Fight Captured on Video for 1st Time
https://www.livescience.com/58946-vicious-cuttlefish-fight-captured-on-video.html

Righty Male Cuttlefish Are Better at Sex and Fighting
https://www.livescience.com/64984-righty-male-cuttlefish-win.html
 
In case you've ever wondered what a cuttlefish wearing shades would look like ...

cuttlefish+3D-glasses.jpg
Scientists put 3D glasses on cuttlefish and showed them film clips. The results were surprising

Cuttlefish have the ability to watch 3D movies and react to them much like they would if they saw the real thing out in the ocean.

And when it comes to depth perception, they're incredibly proficient.

Those are the findings from a study published Wednesday in the journal Science Advances.

Trevor Wardill, an assistant professor of ecology, evolution and behavior at the University of Minnesota and lead author of the paper, told CNN his team super glued Velcro to the skin of the cuttlefish. Then they fastened 3D glasses, with one red and one blue filtered lens, to the Velcro on the skin.

On a screen at the front of the cuttlefish tank, the researchers played video of shrimp, one of the species' favorite tasty snacks.

"It took a lot of coaxing of the cuttlefish to make them wear their glasses," Wardill said. "They'll want to play with it."
But when the little critters behaved, something magical happened.

The cuttlefish extended their tentacles and attacked the on-screen shrimp the same way they would if they saw their prey in the wild. ...
Click to expand...
FULL STORY: https://www.cnn.com/2020/01/08/us/3d-glasses-cuttlefish-scn-trnd/index.html
 
It was about trying to determine how their depth perception worked.
However the article mentions no control group being given regular glasses. That seems like sloppy science.
 
It could have been worse, they could have shown them an Uwe Boll movie.
 
Cuttlefish Can Refrain From Eating if They Know a Better Meal Is on The Way

Source: sciencealert.com
Date: 5 February, 2020

Cephalopods such as octopuses and squids may demonstrate some impressive smarts, but the latest research on cuttlefish may just blow your mind.

Researchers have found that cuttlefish fed to a schedule will very quickly cut back on eating less enticing food, so they can gorge themselves on their favourite later on.

This means that not only are cuttlefish seemingly able to memorise the feeding schedule, they're incorporating that schedule into future planning, and then exercising self-control to make the most of their favourite food (shrimp, yum).

That's wild.

"It was surprising to see how quickly the cuttlefish adapted their eating behaviour - in only a few days they learned whether there was likely to be shrimp in the evening or not," said neuroscientist Pauline Billard of the University of Cambridge in the UK and Université de Caen Normandie in France.

"This is a very complex behaviour and is only possible because they have a sophisticated brain."

https://www.sciencealert.com/cuttle...ting-if-they-know-a-better-meal-is-on-the-way
 
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