- A captive female gorilla has been spotted teaching her
daughter how to tend to her newborn. Gorilla mothers are often seen teaching
their young to walk and climb, but primatologists believe this is the first
report of a mother instructing her daughter on baby care.
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- The daughter, an 11-year-old western lowland gorilla
called Ione, had neglected her first baby, which her keepers raised. So
for several days after the birth of her second baby at San Diego Wild Animal
Park, the keepers and primatologist Masayuki Nakamichi of Osaka University
in Japan kept a close eye on her.
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- Initially, Ione simply left her baby on the ground in
front of her 21-year-old mother, Alberta, who picked him up and handed
him back. When Ione made no move to take the baby, Alberta moved closer
pushing the newborn into his mother's face until she took him. Variations
on this sequence occurred several times in the first two days.
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- By the third and fourth day, Ione was holding the baby.
Sometimes, Alberta would hold the baby's arm, and Ione would hand him over,
but when the baby nestled into its grandmother, Ione quickly took him back.
With time, Alberta became less involved.
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- Nakamichi argues that Alberta's actions were attempts
to teach Ione appropriate maternal behaviour. "These behaviours are
subtle. It takes an acute observer to spot them," says James Moore
of the University of California in San Diego.
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- Sadly Ione died when the baby was 10 months old, but
another female gorilla successfully fostered the baby.
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- - Journal reference: Primates (DOI: 10.1007/s10329-003-0061-9)
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- http://www.newscientist.com/news/news.jsp?id=ns99994370
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