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Factuos

Is that actually true? Popular claims and myths, checked against the evidence

Topic

goldfish

Animals & Nature4 min

Do goldfish really have a three-second memory?

Illustration of a goldfish in an aquarium swimming straight across the tank to a red ring on the glass where food pellets are drifting down

The three-second memory is the most famous thing about goldfish. Here is what decades of experiments say about how much a goldfish can learn and how long it remembers.

Do you know? Find out