Researchers have made strange discoveries about male mice: bananas cause them stress.
This discovery was inadvertently made when scientists were studying the response of male mice to pregnant and lactating females.
During the course of their research, the researchers found that compounds in bananas elicit a stress response in male mice.
Male mice show stress and tension. [pain inhibition] “Late pregnancy or lactating female mice,” said a study published in Science Advances.
A team from McGill University in Montreal also found that pregnant and lactating females responded to foreign males with “signs of aggression and urination.”
Male mice are known to be aggressive towards killing pups and babies. Therefore, pregnant and lactating females release chemicals to warn these males.
“Many mammals, apart from rodents and humans, rely on the sense of smell,” said Professor Jeffrey Mogil, lead author of the life sciences research.
“The signs of urine odor are well known, but what we have discovered here is a new message that has never been explained in mammals.”
Scent messages are usually sent to men, but women rarely send them to men.
In this case, the researchers believe that the women are “telling the men to abstain.”
This is where bananas come in.
The authors found that the n-pentyl acetate compound found in the urine of pregnant and lactating female mice is found in various fruits and is similar to the compound used to make banana extracts.
This is the chemical that caused the hormonal changes in male mice.
So when the team bought a banana oil extract from a supermarket and put it in a cage for male mice, the stress level increased significantly.
The stress response of the mice was found to be similar to the stress response when they tried to fight.
The importance of this finding lies in the fact that even in the absence of aggressive females, the mere threat of such attacks via banana compounds is enough to stress male mice.
Studies show that virgin male mice are more likely to be stressed because bananas and mouse urine contain amyl acetate.
This is consistent with a tendency to be more aggressive towards infants than non-virgin mice, suggesting that they are more vulnerable to infants than older males.
Source: Metro
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