Male rivalry increases when females at most fertile, say researchers
Men become more jealous of dominant males when their female partner is near ovulation, researchers at the University of Liverpool have found. Previous studies have found that women's preferences for male physical appearance vary according to their fertility status. During ovulation women tend to find masculine looking men more attractive and prefer their voices and odour. During this fer...HIV Takes Advantage of Rivalry among T cells
Houston: A novel HIV study has demonstrated how intense struggle among the human immune system's T cells gives the leeway to the virus to survive harm and take on a more virulent form, developing into the advanced stages of AIDS. // The study, which uses a computer model of simultaneous virus and immune system evolution, also gives a hint of a new strategy for using vaccines against the v...