Categories: world

Orangutans are first non-people who understand the past

The Orangutans produce what are called "time-shifted responses" and thus they join a very exclusive club: We do this, bees…

The Orangutans produce what are called “time-shifted responses” and thus they join a very exclusive club: We do this, bees do this and now orangutans. The paper was written by Adriano Rei e Lameira and Josep Call who studied seven Pongo abelii mothers in Sumatra’s Ketambe forest.

Stealthy kisses

Grrr, I’m a predator. (Adriano Rei e Lameira)

Orangutan’s warning is described as not to unlike a human kiss. To induce one, researchers crawled around all four covered by a sheet under the women up to trees 5 to 20 meters above. The sheet had one of three patterns: tiger stripe, spotted and a plain white. (The tiger sheet proved to be most scary, surprisingly.) After being exposed to a female, the researcher remained in sight for two minutes before he crept out of sight.

The first female they found was accompanied by a young 9-year-old, and as soon as she noticed the “predator”, Lameira tells Science Magazine “She stopped what she did, took her child, fired [a sign of distress] and slowly began climbing higher in the tree. She was completely silent. “The researchers were waiting for her to warn others. “It was frustrating. Twenty minutes passed.” And so she did at last. ” And there was no mistake what she did. “She demanded more than an hour.”

The experiment was repeated with another six females – 24 samples in all – and about half of the time a noise alert signal was created. When it was, none of them took as long as the first orangutan would lift the alarm – the average was seven minutes. And as the first subject, there were long-term warnings, with an average duration of 1519.2 seconds, or just over 25 minutes.

Orangutan’s strategy

( Axel Drainville )

Women may be hesitated because they were immobilized by terror, but scientists do not think this was the case because the mothers showed other answers Directly, for example, defecating from fear and immediately corralling their young and moving to higher branches. Lameira believes that they simply understood that the shutting down of an immediate alarm would tell predators where to find their byte. “Because vocal algae in itself reveal the presence and position of a subject,” he states, “the women seem to delay their response to minimize the perceived possibility that a predator tries to attack directly, especially in the presence of an unweighted child.” And so, “The mother saw predators as dangerous to their youngsters and chose not to call until it was gone.” After all, as the study says, “There was no reason that Orangutan women shouted after a predator model had been removed, but it still did.”

If it was not a matter of security, what more could happen, do the researchers ask? “In order to explain the observed vocal delays as a matter of concept, it seems problematic, without thinking of the mental ability to maintain the thought or memory of a meeting with a predator and / or the ability to solve the response time.”

An interesting pattern showed data where the younger mother was charging, the more likely to quickly alarm an alarm she was once predators were gone. Lamier’s team shows that this “indicates that the decision to call or not to call – even after the cause was long gone – partly as a measure of perceived danger to others.”

Early information

( Matej Hudovernik / Shutterstock)

The study finds that “Depending behavior in time and space expresses itself a role of high cognitive treatment of stimulus and general intelligence.” The authors say Also: “Our results indicate that displaced reference in the language is likely to have originally piggybacked on akin behaviors in an ancestral hominid.” This may mean that our ability to conceptualize the past may have come to us through a common ancestor with orangutans.

This is something that deserves more studies. “The lack of evidence of displaced references in orangutans, and major apes more generally, may not reflect a lack of cognitive capacity but a limited research focus.” Even so, is another similar survey showing time offset in these monkeys, including the discovery 2013 on the future awareness of wild flanged orangutans who send their travel plans one day before their venturing off in search of buddies, and by the men of these amorous destinations that apparently rearrange their own schedules accordingly.

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