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Old 09-10-2010, 10:26 AM   #1
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Default High-Born Hyena Sons Benefit Their Entire Life

High-Born Hyena Sons Benefit Their Entire Life
ScienceDaily
Aug. 25, 2010

High-born hyena sons benefit their entire life
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High-ranking mothers provide their sons with a privileged upbringing and this increases their son's success after leaving home. This was now demonstrated for the first time in a social mammal, the spotted hyena, by a research team lead by scientists from the Leibniz Institute for Zoo and Wildlife Research (IZW).

The results are presented in this week's issue of the scientific journal Nature Communications.

In many social mammals, there is a strict linear dominance hierarchy among the group members. In these societies, high-ranking mothers have preferential access to resources and can invest more in their offspring than lower-ranking mothers. As a result, their offspring often survive better than those of lower-ranking mothers. Whether high maternal investment also influences the long-term reproductive success of sons was unknown until now. To investigate this question...
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