Mum`s the word! Female chimps with a powerful mother are more likely to stay at ...
(World News Science)

Female chimps often leave their family unit as they reach puberty but research has found those with a powerful mother are more inclined to stay put. Normally, females leave to find a new group when they are around 11 years old, in order to avoid inbreeding with their brothers. Males however, stay in the same group for life and work together to defend the colony. But researchers from Duke University in the US found the perks of having a high-ranking mother encourages some females to stay. Being in close proximity to a powerful mother means young females can use some of their mother`s social clout to get more food. This, it appears, is worth staying put for and overcomes the risk of mating...