Haben Fische wirklich ein Drei-Sekunden-Gedächtnis?

Do fish really have a three-second memory?

The idea that fish have a three-second memory is a common misconception that underestimates the cognitive abilities of these animals. Contrary to this assumption, research has shown that fish have a much longer memory span and are capable of sophisticated behaviors that require cognitive skills.

Understanding the memory and intelligence of fish

Experiments have shown that fish can remember complex tasks and navigate mazes, remember the location of food sources, and even recognize individual people. These abilities suggest that their memory lasts much longer than three seconds.
Fish are also capable of social learning, which involves observing and imitating the behavior of other fish. This ability requires a memory that can store information long enough to use it in a meaningful way. For example, many fish species follow more experienced members of their group during migration.
Finally, fish can be trained to respond to different stimuli, further disproving the three-second memory myth. In controlled environments, fish have been taught to press levers to obtain food, showing that they remember the association between the lever and the reward over longer periods of time.

The source of the myth

The myth about fish memory may stem from observations of their repetitive swimming patterns in confined spaces such as small tanks, giving the impression of a short memory span. However, this behavior is often due to limited storage space rather than limited memory.


Fish have been shown to have memories longer than the oft-quoted three-second span. Recognizing their ability to remember and learn helps in understanding their behavior and needs, especially in captivity. It emphasizes the importance of providing fish with a stimulating environment to support their cognitive health.