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Chimpanzees 'hunt using spears'
BBC News ^ | 22 February 2007

Posted on 02/22/2007 11:16:27 AM PST by Abathar

Chimpanzees in Senegal have been observed making and using wooden spears to hunt other primates, according to a study in the journal Current Biology. Researchers documented 22 cases of chimps fashioning tools to jab at smaller primates sheltering in cavities of hollow branches or tree trunks.

The report's authors, Jill Pruetz and Paco Bertolani, said the finding could have implications for human evolution.

Chimps had not been previously observed hunting other animals with tools.

Pruetz and Bertolani made the discovery at their research site in Fongoli, Senegal, between March 2005 and July 2006.

"There were hints that this behavior might occur, but it was one time at a different site," said Jill Pruetz, assistant professor of anthropology at Iowa State University, US.

"While in Senegal for the spring semester, I saw about 13 different hunting bouts. So it really is habitual."

Jabbing weapon

Chimpanzees were observed jabbing the spears into hollow trunks or branches, over and over again. After the chimp removed the tool, it would commonly smell or lick it.

In the vast majority of cases, the chimps used the tools in the manner of a spear, not as probes. The researchers say they were using enough force to injure an animal that may have been hiding inside.

In one case, Pruetz and Bertolani witnessed a chimpanzee extract a bushbaby with a spear.

In most cases, the Fongoli chimpanzees carried out four or more steps to manufacture spears for hunting.

In all but one of the cases, chimps broke off a living branch to make their tool. They would then trim the side branches and leaves.

In a number of cases, chimps also trimmed the ends of the branch and stripped it of bark. Some chimps also sharpened the tip of the tool with their teeth.

Adult males have long been regarded as the hunters in chimp groups.

But the authors of the paper in Current Biology said females and juveniles were seen exhibiting this behaviour more frequently than adult males.


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To: Abathar

My god!!! is Britany involved here too.


21 posted on 02/22/2007 11:42:17 AM PST by fish hawk (The religion of Darwinism = Monkey Intellect)
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To: BubbaBobTX

Jake was interesting in getting out to spend time with a "honey" from down the street in Prior Lake.


22 posted on 02/22/2007 11:42:53 AM PST by Eric in the Ozarks (BTUs are my Beat.)
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To: tillacum
They will next, run for the presidency on the democRAT ticket. Smart animals.

Two words.

John Kerry.
23 posted on 02/22/2007 11:43:50 AM PST by Dr.Zoidberg (Mohammedanism - Bringing you only the best of the 6th century for fourteen hundred years.)
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To: Abathar

I suppose the next thing we will hear is that they are using sani-cans.


24 posted on 02/22/2007 12:06:20 PM PST by taxesareforever (Never forget Matt Maupin)
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To: Abathar
Stabbing with a stick is NOT using a spear..
Like throwing rocks is not ejecting a projectile..
25 posted on 02/22/2007 12:12:33 PM PST by hosepipe (CAUTION: This propaganda is laced with hyperbole....)
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To: Abathar
Chimpanzees were observed jabbing the spears into hollow trunks or branches, over and over again. After the chimp removed the tool, it would commonly smell or lick it.

A biological antecedent?
26 posted on 02/22/2007 12:13:59 PM PST by aruanan
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To: hosepipe
"Stabbing with a stick is NOT using a spear.. "

What would you call breaking the stick off, stripping it down, and chewing it sharp and then using that end to stab a living creature to kill it?

27 posted on 02/22/2007 12:15:14 PM PST by Abathar (Proudly catching hell for posting without reading the article since 2004)
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To: Abathar

American chimps can chuck spears while skating backwards, AND smoking a cigar.

USA! USA! USA!


28 posted on 02/22/2007 12:18:44 PM PST by tumblindice (No, I don't have any proof. I saw it though. In Walla Walla, Washington. It was a dark and stormy ni)
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To: Abathar

LOL!
Seriously, though, it's not too surprising.
If a chimp can shoot a gun (And some can), making and using a spear shouldn't be seen as a major accomplishment for them.


29 posted on 02/22/2007 12:19:57 PM PST by Chewie84
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To: lakeman

ROFL!

Someday they may start using cigars.


30 posted on 02/22/2007 12:23:40 PM PST by KoRn
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To: Abathar

"Use Tools - Feel Human"


31 posted on 02/22/2007 12:28:28 PM PST by Hegemony Cricket (Never let it be said that there are things we would never let be said.)
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To: Abathar

32 posted on 02/22/2007 12:29:29 PM PST by Old Professer (The critic writes with rapier pen, dips it twice, and writes again.)
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To: pissant

"Wow, they'd overwhelm the French Army."

I suppose that puts them on par with Ewoks. They defeated the emperor's best legion of Storm troopers with pointy sticks. Who needs Jedi knights?


33 posted on 02/22/2007 12:34:55 PM PST by Miles the Slasher
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To: John Semmens

Oh glorious Spain! I can finally marry my chimp lover!!


34 posted on 02/22/2007 12:35:51 PM PST by No_More_Harkin
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To: Abathar

"wooden spears"

Do they also shave their heads when they do this?


35 posted on 02/22/2007 12:36:45 PM PST by HereInTheHeartland (Never bring a knife to a gun fight, or a Democrat to do serious work...)
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To: Abathar
Witness the rise of the Planet of the Apes!!!!

"Beware the beast man, for he is the Devil's pawn. Alone among God's primates, he kills for sport or lust or greed. Yea, he will murder his brother to possess his brother's land. Let him not breed in great numbers, for he will make a desert of his home and yours. Shun him; drive him back into his jungle lair, for he is the harbinger of death."-Sacred scroll of the apes.

36 posted on 02/22/2007 12:41:27 PM PST by Names Ash Housewares
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To: Eric in the Ozarks

I used to know a clever horse who could unlock stalls...then once he had let all the others out, he would go and stand innocently in his own stall. "I didn't do it."

The owners of the barn found out by placing a camera at the barn door...they couldn't figure out who was getting into the barn at night to let the horses out. They never saw anyone go in or come out.

My own horse used to take the brush from my hand and, with an up and down motion of his head, he used to brush ME.

Still and all...we didn't evolve from horses, eh? Scientists keep hoping, don't they?


37 posted on 02/22/2007 12:49:23 PM PST by freepertoo
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To: BubbaBobTX

I remember when Jane Goodall first filmed chimps using sticks that they had peeled and shaped to dig termites out of crevices in rocks and trees...she was the first documented scientist I think to demolish the myth that only man made and used tools...prior to her findings the use of tools and burying the dead seemed to distinguish humans from aniamls...my guess is that man is still the only animal who buries his dead with tools and other objects for the afterlife.


38 posted on 02/22/2007 12:49:56 PM PST by foreshadowed at waco
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To: Abathar

There was an young man from Santee
Who molested she-chimps in a tree:
..The results, all quite horrid,
..All ass and no forehead,
Three balls and purple goatee.


39 posted on 02/22/2007 12:50:45 PM PST by tumblindice (Like her? Why, she drives me ape)
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To: John Semmens
I believe Spain may have already granted chimps voting rights: Spain's Socialist Party Wants to Give Apes Rights

That's just because the socialists want to broaden their voter base.

40 posted on 02/22/2007 12:52:01 PM PST by highlander_UW (I don't know what my future holds, but I know Who holds my future)
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