Researchers at The University of Queensland have found out something quite interesting - cephalopods along the coast are colorblind. Even with that trait, they can still manage to perfectly blend in with the rest of their surroundings.
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Cephalopods are better known as individual animals: squid, octopus, or cuttlefish. They are well known for how quickly their colors change and how well they are able to camouflage with their surroundings, which keeps them safe.
Professor Justin Marshall and Dr. Wensung Chung from the Queensland Brain Institute found that some squid have the ability to adapt their vision depending on where they are at any given time. It changes based on the color and depth of the water where they live.
Professor Marshall said that the latest said that it is fascinating to see how the intelligent these animals are when they interact in their world.
“These engaging and charismatic animals can display complex, bright colour patterns on their skin, but our studies have reconfirmed beyond doubt that they are colourblind,” Professor Marshall said. “It is ironic then that humans still struggle to spot them in the natural habitat where their camouflage is perfectly matched with the surroundings.”
The research also found that squids have the ability to do something called spectral tuning, which allows them to change their visual focus from green in coastal waters to blue in deep sea conditions.
“Everyone loves an octopus and finding out more about the way they and their cousins see their world is a treat and a privilege,” Professor Marshall said.