The largest study made in the last seven years regarding the effectiveness of a vaccine against HIV (the Human Immunodeficiency Virus) has started in South Africa. At this test participate 5,400 persons that will receive the injectable doses to prove the efficiency of this treatment, the EFE reports. The volunteers, all of them being adults and sexually active, which are the … [Read more...]
Vervet Monkeys reward the brave and punish the weak
The females of the vervet monkeys use to incite the males to take part in the fights against the rival groups and to reward the bravest. Instead, they attack the males who have a more cautious attitude during the conflict, according to a study, informs the AFP. This research is the first which demonstrates that 'another species besides man is able to use the manipulation … [Read more...]