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There are only about 800 specimens, but these are a new species of orangutans, which adds to the six already known of great apes. The experts who have found it in Sumatra have baptized it as Tapanuli orangutan and they affirm that it is the one that more danger has to be extinguished by the habitat and the hunting.

The new population of orangutans has been named the Tapanuli (Pongo tapanuliensis), and these are endemic apes in the three districts of Tapanuli, north of Sumatra, where about 800 individuals live in an area of 1,100 square kilometers of the Batang Toru ecosystem.

The orangutans that live in Batang Toru were rediscovered in 1997, but it was not until 2013 when the researchers studied characteristics of a skull of this population that differed from the rest of skulls known until then.

Biologists suspected that the population of Batang Toru was potentially unique, but they needed more evidence, so they studied their genome and that of 36 wild orangutans over ten populations of Sumatra and Borneo.

So they started the most comprehensive study of the orangutan genome done so far and that has been carried out in the National Center for Genomic Analysis-Center for Genomic Regulation (CNAG-CRG).

Researchers from the University of Zurich (Switzerland), the Institute of Evolutionary Biology (IBE-CSIC) and the Center for Genomic Regulation (CNAG-CRG) in Barcelona have described this population of orangutans to now unknown living in North Sumatra ( Indonesia) and that it could be the species of great ape most threatened.

In the finding, published by the journal Current Biology, researchers from IBE Jaume Bertranpetit, Marco de Manuel and its director Tomás Marqués-Bonet, and others from CNAG-CRG of Barcelona participated.

According to Krützen, “the oldest evolutionary line in the Pongo genus is found, in fact, in Baranger Toru orangutans, which appear to be direct descendants of the first population of Sumatra in the Sunda archipelago.”

The study shows that the population of Batang Toru would have been isolated from all other populations of Sumatra for at least 10,000 or 20,000 years.

As in the Batang Toru ecosystem there are a maximum of 800 orangutans, according to the new proposal of taxonomic classification, they are, therefore, the population of great apes with more danger of extinction, in a territory affected by a high anthropogenic pressure and threatened by hunt, hydroelectric construction, and replacing forests with mining operations. (November, 2017, EFE/Practica Español)

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Question 1
La noticia habla sobre...
el genoma de los simios.
la caza de 800 orangutanes en Sumatra.
el descubrimiento de una nueva especie de grandes simios.
Question 2
Dice la noticia que los biólogos estudiaron el cráneo de 36 orangutanes de las nueva especie.
Es cierto.
¡No, hombre!
No queda claro.
Question 3
Dice la noticia que los biólogos compararon el genoma de los Tapanuli con el de 36 orangutanes de otras especies salvajes...
no se da el dato.
¡Totalmente cierto!
no es cierto.
Question 4
Los Tapanuli vivieron aislados del resto de los orangutanes de Sumatra...
al menos 10.000 años.
no me lo creo.
por eso han sobrevivido.
Question 5
¿Sabes a qué se llama presión antropogénica?
a la alteración genética animal.
a las acciones humanas que destruyen el hábitat.
a dar caza a los orangutanes.
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