Simpanse di Senegal, Pan troglodytes verus, katanya udah pake semacam tombak untuk berburu.

Jadi kepikiran, beberapa binatang kan seperti simpanse ini, anjing, dan lumba-lumba termasuk binatang yang cerdas, bisa kita ajarin. Nah tapi mereka gak punya kemampuan untuk ngajarin sodara2nya atau anak2nya, makanya mereka gak makin pinter, bener begitu kan? Nah, kalo simpanse ini bisa bikin tools seperti itu, kira2 awalnya gimana yahh... beneran bingung 

physorg.com/news91371478.html

Chimpanzees found to use tools to hunt mammalian prey

Reporting findings that help shape our understanding of how tool use has evolved among primates, researchers have discovered evidence that chimpanzees, at least under some conditions, are capable of habitually fashioning and using tools to hunt mammalian prey. The work, reported by Jill Pruetz of Iowa State University and Paco Bertolani of the University of Cambridge, will appear online in the journal Current Biology on February 22nd. Chimpanzees are well known for their ingenuity in using tools for some tasks, such as obtaining invertebrate insects from logs or pounding open hard nuts, but there had been only fleeting evidence of chimpanzees brandishing tools for bona fide hunting.

In the new work, researchers observed tool use in hunting by the Fongoli community of savanna-dwelling chimpanzees (Pan troglodytes verus) in southeastern Senegal. Chimpanzees were observed making spear-like tools in a step-wise fashion, and subsequently using them with jabbing motions in an apparent effort to obtain lesser bushbabies (Galago senegalensis) from cavities in hollow branches or tree trunks. Bushbabies are nocturnal prosimians that retire to such hidden cavities during the day.

Although there was only one successful attempt in 22 recorded instances of the chimpanzees using the spear-like tools to find and obtain prey, the researchers observed that tool-crafting and associated hunting behavior was systematic and consistent, suggesting that it was habitual. The hunting behavior included forceful jabbing motions into branch or trunk hollows, and chimpanzees were seen to subsequently open the hollows by breaking wood off from a distance, suggesting that the jabbing actions were intended to immobilize bushbabies, rather than rouse them from their cavities (bushbabies move quickly and might otherwise easily evade chimpanzees once roused).

Two notable aspects of the behavior observed in the Fongoli group were that on the one hand, it is rare for chimpanzees to consume prosimian prey—in other study sites, red colobus monkeys, hunted mainly by males, are the chimps’ most common prey—and on the other hand, the tool use appeared to be primarily restricted to females and immature individuals. These two behavior characteristics could both be related to the fact that the Fongoli community inhabits a mosaic savannah that is relatively dry, and where red colobus monkeys are absent. This habitat may promote efforts—such as the observed tool use—to obtain meat through other means.

The authors point out that the females and immature chimpanzees using the spear-like tools appear to be exploiting a niche relatively ignored by males, an observation that supports a previous hypothesis that female hominids played a role in the evolution of the earliest tool technology and suggests that this technology may have included tools for hunting.

Source: Cell Press

wah menarik banget video-nya yah ... trus di situ disebut jg, ternyata perbedaan genetik manusia dan simpanse cuma sekitar 4%      bandingkan dg perbedaan genetik antar mice dan rat yg bisa sampai 40% 
(http://news.nationalgeographic.com/news/2005/08/0831_050831_chimp_genes.html)

Nah, kalo simpanse ini bisa bikin tools seperti itu, kira2 awalnya gimana yahh...

coba cek ini:

Chimp "Stone Age" Finds Are Earliest Nonhuman Ape Tools, Study Says

Humans might not be as pioneering as we're cracked up to be.

That's one possible explanation for new evidence that West African chimpanzees learned to use stone tools on their own to crack nuts at least 4,300 years ago.

The research pushes back chimpanzee tool use thousands of years. It casts into doubt the long-standing theory that direct human ancestors were the only animals to independently develop tools—and that chimps learned to use stone tools by watching humans.

Instead both humans and chimps could have inherited the ability to crack nuts with rocks from a common ancestor, Julio Mercader of the University of Calgary in Canada and co-authors report in today's issue of the Proceedings of the National Academy of Sciences.

Or chimps may have developed the behavior on their own. In either case, it's no longer likely that chimps learned to use stones as tools only by imitating humans.

At 4,300 years old, the chimps' tools correspond to the late Stone Age of human history—before the advent of agriculture in West Africa.

"Until recently people used to say that among modern-day chimpanzees the behavior came from imitation of farmers," Mercader said. "That assumption is no longer valid. What we present predates the presence of farming."

baca selanjutnya di:
http://news.nationalgeographic.com/news/2007/02/070213-chimps-tools.html

pertanyaan lanjutan. Misal nih, simpanse bisa pinter gitu, binatang lain ada juga yang bisa bikin tools gitu? Maksudnya gini, kalo simpanse bisa berkembang sendiri (bukan meniru manusia) hewan lain harusnya bisa dong?

berang-berang udah lama pake batu buat mecahin kerang...
kapasitas otak binatang lain ga terlalu gede untuk bisa berpikir. mereka lebih banyak mengandalkan insting.

Lebih gila lagi begini : misal manusia berasal dari kera, harusnya ada "manusia" lain yg berasal dari gajah atau ular

kalo manusia dari gajah sepertinya shincan udah sering memeragakannya...

berang-berang udah lama pake batu buat mecahin kerang...
kapasitas otak binatang lain ga terlalu gede untuk bisa berpikir. mereka lebih banyak mengandalkan insting.

Baru tau kalo berang-berang juga pake alat, musti banyak baca2 lagi keknya nih 

kalo manusia dari gajah sepertinya shincan udah sering memeragakannya...

Nah, ini lebih menarik haha.... 

perkembangan / evolusi bukannya tergantung dr "kedekatan"-nya di phylogenetic tree ya? makanya manusia ngga bisa berasal dari gajah atau ular ...


ayo tolong yg udah baca sagan kasih clue ya 

Hmm.... ada nada menyindir sepertinya nih 

Maksud saya tentang "manusia" lain itu dari sisi intelektualnya, ada makhluk lain yang dapat berpikir, belajar, dll... bukan berarti, misalnya, memiliki fisik seperti kita sekarang, mungkin seperti manusia dalam contoh syx itu, ada "manusia" gajah, punya belalai dan gading, tapi mampu berkomunikasi satu sama lain, mampu belajar.... ya gitulah maksudnya....

Ntar ya, baca sagan lagi deh kalo gitu

Untung nggak ada simpanse yang bisa ngepost di forum

@f_ikyos: orca = orang cakep  ... ehehhehehhee 

jadi malu
keliatan narcis ya 

Untung nggak ada simpanse yang bisa ngepost di forum

lho itu di post pertama kan ada simpanse lagi mikir...

simpanse bisa dikatakan kelompok binatang yg paling cerdas. mereka bahkan mampu adu strategi saat terjadi perang antar kelompok. sadisnya, mereka bisa berlaku kanibal dengan memakan musuhnya... (siapa bilang simpanse selamanya lucu?)

wedew...itu di ajarin dulu atau mereka menemukan sendiri cara memakai tombaknya?hohoho...  :o

just thinkin of some imagination