Surprised fish are similar to humans

Rejecting ideas that only humans can express their emotions, many scientists have proven that animals are not emotionless and that they are similar in emotions to us.

This hypothesis is increasingly reinforced when researchers have recently discovered a fish that expresses similar emotions to its partners.

The study, published on June 12 in the journal The Proceedings of the Royal Society B, said scientists at the University of Burgundy, France, conducted a series of experiments on emperor fish (cichlid). from Central America. Research is done in both males and females to assess their mood and emotional attachment.

The fish of the emperor.(Photo: Getty Images).

Scientists let 33 children choose the male they like. Then, they monitor their children's behavior when they are not paired with their favorite partner. They found that females separated from their favorite partners have a more pessimistic view of life.

In another series of experiments, scientists trained fish can identify and open different colored boxes in the tank. Three boxes include: 'positive box' containing food items inside, the second empty box is called the 'negative box' and the last box is the 'vague box' to see the counter. The effects of children before and after being separated from their favorite friends.

Experimentalists discovered that females paired with their favorite males quickly discovered the 'vague box' , while females separated from their partners were able to react. Slower.

'This is considered a measure of their emotional state, optimism or pessimism,' said behavioral ecologist Francois-Xavier Dechaume Moncharmont, one of the study's authors.

He said: 'If you are in a positive mood, you will see life in a positive way. If you are serious about pessimism, you often only see the wrong side of the problem with troubles and difficulties. With this fish too, we gave them one "vague box
and their reaction to this box is similar to their emotional state. '

Scientists also found that when females are paired with a favorite male, they often reproduce earlier and spend more time hatching eggs. This can help us better understand the love and emotional attachment of this animal.

Dechaume Moncharmont said: 'Many psychologists claim that only humans feel affection for couples, but with this study we show that it is not true. Many people believe that our decision to defile the sacredness of love. But obviously, when you love someone, you can behave a bit strange and perhaps this emotional reaction also has values. If these emotions are independently evolved in many species, then it can be proved that there are certain adaptive values. '