As per earlier beliefs, fish can remember things only up to three seconds. However, a new research has suggested that this could be false. The research has found that fish can remember things up to five months.
In order to reach this conclusion, a month was spent by researchers at the Israeli Technion Institute of Technology in Haifa in schooling young fish to associate a certain sound with feeding time.
Following this, the fish was released by them into the wild and when the fish became adults after five months, the sounds were repeated.