BBC said, the scientists of the Scripps Research Institute in La Jolla, California, USA discovered that mice and possibly other mammals, but develop receptors receive the chemical signal from other species. Therefore, the mouse will have a fear response when detected some have characterized protein in cat saliva and urine of rats.These proteins, called MUP, the effects on the cells in a special sensory organs in mice called olfactory organ in the mouth. Olfactory organ in the mouth contains nerve cells which recognize the protein. The agency is connected to the areas related to memory, emotions, and release hormones in the brain. In many species of mammals, this is the agency to Tell pheromone (chemical signal contains the information exchanges between the same type). The pheromone that can directly impact the behavior of animals.
But the latest study, scientists found the neurons in the olfactory palate in mice also suffer from chemical signals from predators stimulation. The mouse protein which presents with fear as any action or in the ground as they sniff and explore around.
Lisa Stowers, who led the study, said the finding has very important meaning. Once the animals developed a receptor protein to recognize a native MUP, the genes can also make development of new receptor protein to Tell from the other animals. That will help avoid being eaten.
However, as Professor Stowers was surprised when three experimental results and the team activated the olfactory palate in mice and then exposed to the general public with a river rat but was anesthetized. Do not be recognized protein MUP, mice each face the public right-absolutely not show fear, even though they still see the rats in front.
Stowers said, "A multi-scrolling mice slept right next to the card in rats. We think it no loss of fear of rats. "
But the latest study, scientists found the neurons in the olfactory palate in mice also suffer from chemical signals from predators stimulation. The mouse protein which presents with fear as any action or in the ground as they sniff and explore around.
Lisa Stowers, who led the study, said the finding has very important meaning. Once the animals developed a receptor protein to recognize a native MUP, the genes can also make development of new receptor protein to Tell from the other animals. That will help avoid being eaten.
However, as Professor Stowers was surprised when three experimental results and the team activated the olfactory palate in mice and then exposed to the general public with a river rat but was anesthetized. Do not be recognized protein MUP, mice each face the public right-absolutely not show fear, even though they still see the rats in front.
Stowers said, "A multi-scrolling mice slept right next to the card in rats. We think it no loss of fear of rats. "
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