The food you eat could change your genes
...ed after it has been born. If a rat is not licked, groomed and nursed enough by its mother, chemical tags known as methyl groups are added to the DNA of a particular gene. The affected gene codes for the glucocorticoid receptor gene, expressed in the hippocampus of the brain. The gene helps mediate the anima...Referential-gesture communication in wild chimpanzees (Pan troglodytes)
.... In the majority of cases, the indicated spot was groomed immediately afterward by the recipient of the gesture. The scratch gesture occurred between pairs of adult males and was used more often in pairs consisting of high-ranking males. On the basis of their observations, the researchers suggest that the "......aufman. If the virgin gains too much weight and is groomed off the host, it won't reattach itself to another host and continue feeding. "However, if she remains small she still has a chance to reattach itself to another hosthopefully infested with some feeding males-- continuing feeding and potentially mate,...