Fear of eating might hide some reactions such as, for example. But in the case of red wetting, fear produces them again and has more offspring, especially if they believe that this may be their last trash.
Studies conducted in red vines found that mothers born of mother tongue produce liters with 50% more offspring than mothers who are safe.
Fear can push populations and encourage evolution. This is accompanied by species of rats living in Western Europe and North Asia: Red Tokley (Maides Glarlos). A study published in the magazine Scientific Reports, It shows When these rats are threatened by predators, they produce more offspring. (You can read: The rustic mice brain raises the keys of 'love')
A team of biologists in Finland and the Netherlands studied these small mammalian chemical responses to understand their behavior. Results show, for example, produces liters with females arising from liens 50% more children than mothers with safety
"The most surprising thing about this study is that the reason for the change in statistical reproduction was indirect"Marco Hapakosky, postdoctoral researcher at Jäviskila University of Finland, says It is to be said that, the chemical sign of hunters – without the active presence of it – was enough to increase the offspring.
The smell also scares
Hunters can fear what they are hunting without eating. "Our Study Indicating that the resulting fear is changing the behavior and fertility of these animals Dame, "explains Kevin Matson, of Wiganganson University in the Netherlands. (Read: Scientists cure mice from colon cancer and make them immune)
Work shows that this type of horrible experience can be communicated to people of the same population, whether they have not seen, smelled or heard by the hunter themselves. To reach this conclusion, Scientists experimented.
"When a different group of red-tailed men opened a wessel, Manufactured chemical messages that can be detected and interpreted by the violation of our study ", Alvin Hardenbaal announced the Dutch University's research and chief of the scientific author
In the case of a female, if they are fragrant that they are more likely to eat, they produce more offspring, because this may be their last rubbish. According to biologists, easy physical methods allow mothers to adjust their garbage size.
Ecologist Daniel Lee of Southern Illinois University (USA) says, "So far it was suggested that reproductive species have responded with strong anticipation through reproduction in fertility like fertility." This work "This field study ensures that these answers are mediated by chemical chemistry signals"He concludes. (Read also: Stem cells look at blind mice)