CUTTLEFISH Memory Stays Sharper As they Get Older Compared to Humans

CUTTLEFISH Memory Stays Sharper As they Get Older Compared to Humans

New research found that cuttlefish can remember events right up to their last few days of life, indicating better memory than humans.

Photo: AP News

Scientists from the University of Cambridge set up a memory test on the cuttlefishes.

Some animals are 10-12 months old (equivalent to a human teenager), while others are 22-24 months old (equivalent to a human in their 90s).

The researchers placed two foods in certain locations. One food was their favorite, while the other was not.

They also varied feeding locations and feeding times to ensure the fish were not just learning a pattern.

“Cuttlefish can remember what they ate, where and when,” Dr. Alexandra Schnell, one of the researchers, said. “[They use this memory] to guide their feeding decisions in the future.” 

The tests showed that episodic memory, or the ability to remember experiences from times and places, tends to decline with human age. However, the cuttlefish memory does not.

Cuttlefish’s vertical lobe is for learning and memory. Surprisingly, this part of the fish’s brain does not deteriorate until the last days of their lives.

“They don’t lose this ability with age, despite showing other signs of aging like loss of muscle function and appetite,” Schnell added.

The researchers believed that this ability might help cuttlefish in the wild to “remember who they mated with.”

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