This was demonstrated by experiments with stingrays and cichlids.
A basic sum does not require a human-like brain. This conclusion was reached by scientists from the University of Bonn, who recently published a study in the journal “Scientific Reports.” They set up experiments with freshwater stingrays and pseudotropheus cichlids. Throughout these experiments, the fish were placed in front of a pair of small gates depicting geometric figures of various colors. The fish were taught to select one of the figures and were offered a reward if they made the right choice. This choice depended on the card symbols visible to the fish before placing them by the gates.
It should be noted that it is not only fish capable of basic calculations because bees can also do this. Therefore, this discovery has every chance of becoming the foundation for a new understanding of animals and insects!
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