In humans, the hormone causes “ghrelin” craving, with pigeons and quail it causes the opposite and probably reduces their feast for eating. Singing birds such as garden terraced mosquitoes do not use Ghrelin as a saddle or appetite.
Evolution has given its building instructions to disappear from his genetic material, reports Viennese researchers in the specialist magazine ‘Royal Society Open Science’. The loss can make singing birds easier to get a lot of fat for a bird train.
A team led by Leonida Fusani of the Konrad Lorenz Institute for Comparative Behavioral Research (KLIVV) of Veterinary University of Vienna investigated the genetic material of gardenrasmuggen (Sylvia Borin).
Genes “removed” in the course of evolution
According to their own statements, the researchers were “surprised” in order not to be able to find a template – no gene – for the hormone ghrelin. Subsequent tests “using all available sources and research methods” for other bird species showed that songbirds generally have no ghreline legs. The greatest “subordination” of the birds, which includes almost two -thirds of their species, has clearly removed evolution.
- The loss of this hormone, which apparently transfers a sense of saturation for other birds, probably enables some songbirds to eat “huge quantities” of fat for a bird train. Sperling -birds would, for example, double their body weight.
- “Such research understands better how birds succeed in controlling their body fat can be very useful for people to tackle frequent health problems such as obesity and eating disorders,” the researchers said.
Source: Krone
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