An ellie never forgets?

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  1. #1
    Join Date
    Mar 2011
    Walker Bay
    Thanked: 963

    Default An ellie never forgets?

    Wild elephants can distinguish between human languages, and they can tell whether a voice comes from a man, woman or boy, a new study says.

    That's what researchers found when they played recordings of people for elephants in Kenya. Scientists say this is an advanced thinking skill that other animals haven't shown. It lets elephants figure out who is a threat and who isn't.

    The result shows that while humans are studying elephants, the clever animals are also studying people and drawing on their famed powers of memory, said study author Karen McComb.

    "Basically they have developed this very rich knowledge of the humans that they share their habitat with", said McComb , a professor of animal behaviour and cognition at the University of Sussex in England.

    "Memory is key. They must build up that knowledge somehow."

    'Quite remarkable'

    The study was released on Monday in the Proceedings of the National Academy of Sciences.

    McComb and colleagues went to Amboseli National Park in Kenya, where hundreds of wild elephants live among humans, sometimes coming in conflict over scarce water. The scientists used voice recordings of Maasai men, who on occasion kill elephants in confrontations over grazing for cattle, and Kamba men, who are less of a threat to the elephants. The recordings contained the same phrase in two different languages: "Look over there. A group of elephants is coming."

    By about a two-to-one margin, the elephants reacted defensively, retreating and gathering in a bunch more to the Maasai language recording because it was associated with the more threatening human tribe, said study co-author Graeme Shannon of Colorado State University.

    "They are making such a fine-level discrimination using human language skills", Shannon said. "They're able to acquire quite detailed knowledge. The only way of doing this is with an exceptionally large brain."

    They repeated the experiment with recordings of Maasai men and women. Since women almost never spear elephants, the animals reacted less to the women's voices. The same thing happened when they substituted young boys' voices.

    "Making this kind of fine distinctions in human voice patterns is quite remarkable", said Emory University animal cognition expert Frans de Waal, who was not part of the study.

    While it shows quite a bit about elephant intelligence and adaptability, it also indicates a problem, said biologist Josh Plotnik, founder of think elephants international, a research and advocacy group.

    "This is both fascinating in that it supports evidence we already have that these animals are behaviourally quite flexible, but also sad because it suggests that the conflict between humans and elephants is growing", Plotnik, who was not part of the study, wrote in an email.

    In yet another experiment McComb and Shannon altered female and male voices, making female voices sound male by lowering their tone and resonance, and males sound female by raising their pitches. Those kinds of changes fool most humans, but the clever elephants weren't tricked, McComb said.

    They still moved away from the altered male voices and not the altered female voices.-AP

    ďAfrica changes you forever, like nowhere on earth. Once you have been there, you will never be the same." - Ernest Hemingway

  2. #2
    Join Date
    Apr 2008
    Kuils River
    Thanked: 50



    Thanks for sharing Paul.
    Francois Johnson

    (swambo: Christel)

    Our rides
    • 2010 Isuzu KB300LX DTeq 4x4 D/C
    • Metalian Maxi Trailer, Maxine

  3. #3
    Join Date
    Jan 2010
    Thanked: 0


    Anybody remembers Laurence Anthony, The Elephant Whisperer? According to todays Observer, the elephants he tamed at Thula Thula, arrived again on 2nd March at his house to commemorate his death 2 years ago. Exactly same date and they did that last year as well. Very remarkable

  4. #4
    Join Date
    Sep 2011
    Thanked: 26


    Amazing indeed!

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