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Home»Curious News»Cuttlefishes have better memory than Human? Studies suggest so

Cuttlefishes have better memory than Human? Studies suggest so

Cuttlefishes with age equivalent to human age of 90’s did not show any memory loss as compared to their human counterparts.
Desk ReporterBy Desk ReporterSep 19, 2021
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A new study has revealed that cuttlefish could memorize everything that happened until the last days of their lives. This study is considered as the first to reveal that the memory of an animal does not decrease with age.

Researchers from the University of Cambridge, the Marine Biological Laboratory in Woods Hole, Massachusetts, and the University of Caen in France conducted the study.

According to the reports, the memory analyses were conducted on 24 common cuttlefish, half of them were within the ages of 10 and 12 months (so they are not quite adults), while the other half were between the ages of 22 and 24 months (equal to a human in their 90s).

cuttlefish memory alexandra schnell
Schnell with a cuttlefish @ Marine Biological Laboratory

The fish were taught to approach a black and white flagged place in their aquarium. They were trained that their two typical meals were offered in special flag-marked areas.

At one location, the flag was raised and they were provided a piece of king prawn, a dish that they are not interested in. For four weeks, they were served live grass shrimp from different areas with a different flag every three hours. They prefer grass shrimp a lot more.

The two feeding areas were changed every day to assure that the fish weren’t learning a pattern. When a flag was waved, the cephalopods were observed to see which food emerged first, so they can find out which eating area was optimal.

cuttlefish memory Alexandra schnell
Alexandra Schnell

“Cuttlefish can remember what they ate, where and when, and use this to guide their feeding decisions in the future. What’s surprising is that they don’t lose this ability with age, despite showing other signs of aging like loss of muscle function and appetite. The old cuttlefish were just as good as the younger ones in the memory task – in fact, many of the older ones did better in the test phase. We think this ability might help cuttlefish in the wild to remember who they mated with, so they don’t go back to the same partner,” Dr. Alexandra Schnell from the University of Cambridge’s Department of Psychology and the lead author of the paper observed.

The researchers were interested in observing how well the cuttlefish memorized which food was provided. The findings showed that, while human episodic memory (recalling events from different times and places) declines with age, cuttlefish memory does not.

He that uses many words for explaining any subject, doth, like the cuttlefish, hide himself for the most part in his own ink.

John Ray (Cuttlefish Related Quote)

This is assumed to be related to the hippocampus, which is present in human brains but absent in cuttlefish brains. The vertical lobe of the brain is related with learning and memory in cuttlefish, and it does not deteriorate until the last few days of life.

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The above news/article was published by a desk reporter at Emirati Times who sourced, compiled, and corroborated this content. For any queries or complaints on the published material, please get in touch through WhatsApp on +971 5060 12456 or via Mail (at) Emirati Times (dot) com

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