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Wild Gorillas using Tools

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Author Topic:   Wild Gorillas using Tools
jar
Member (Idle past 424 days)
Posts: 34026
From: Texas!!
Joined: 04-20-2004

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Message 8 of 42 (247821)
09-30-2005 8:10 PM 		Reply to: Message 7 by RAZD
09-30-2005 8:02 PM

Re: Gorilla Tool Use
On crows, was it you that posted on the crows using cars to crack nuts (placing them in intersections when the lights were red in the paths of the stopped cars and waiting until the next cycle to eat the results?)
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I don't think I've ever posted on it but I've seen Black Birds and Grackles do that.
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Aslan is not a Tame Lion
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jar
Member (Idle past 424 days)
Posts: 34026
From: Texas!!
Joined: 04-20-2004

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Message 10 of 42 (247824)
09-30-2005 8:24 PM 		Reply to: Message 9 by RAZD
09-30-2005 8:15 PM

Bird tool use.
It was even more interesting.
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I had a 70 mile each way commute, almost all straight interstate, I-95. I got to see many interesting things.
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Grackles would run into the lane and drop food, usually nuts but also shellfish. Then they'd run back to the shoulder and face traffic. They never seemed to go any further than necessary.
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The Red Wing Blackbirds dropped stuff in front of traffic, the swooped down to get the bounty. Then they'd run off to the side with it.
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Aslan is not a Tame Lion
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jar
Member (Idle past 424 days)
Posts: 34026
From: Texas!!
Joined: 04-20-2004

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Message 12 of 42 (247836)
09-30-2005 9:20 PM 		Reply to: Message 11 by Omnivorous
09-30-2005 9:17 PM

Re: Gorilla Tool Use
Yes, I have seen Bird Surfing but would not have mentioned it as it seemed way too unbelievable. But since someone else has seen it ... LOL
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Aslan is not a Tame Lion
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jar
Member (Idle past 424 days)
Posts: 34026
From: Texas!!
Joined: 04-20-2004

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Message 23 of 42 (248059)
10-01-2005 9:13 PM 		Reply to: Message 22 by Omnivorous
10-01-2005 9:08 PM

We shouldn't be surprised ...
... afterall, Raven Dreamed the World.
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Aslan is not a Tame Lion
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jar
Member (Idle past 424 days)
Posts: 34026
From: Texas!!
Joined: 04-20-2004

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Message 33 of 42 (248362)
10-02-2005 9:26 PM 		Reply to: Message 1 by Nuggin
09-29-2005 10:53 PM

Tonight's Nature is on the subject.
It's has some great footage of Capuchin monkeys using tools and learning to use tools.
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In Brazil, clever capuchin monkeys use heavy rocks to crack open nuts for food. NATURE's DEEP JUNGLE: THE BEAST WITHIN marks the first time the behavior has been captured on film. Tool use, which was previously thought to be a skill only of primates -- humans and chimps -- reminds us that human abilities arose long before the evolution of our species.
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link to write up
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Aslan is not a Tame Lion
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 Message 37 by Omnivorous, posted 10-03-2005 9:23 AM jar has replied
  
jar
Member (Idle past 424 days)
Posts: 34026
From: Texas!!
Joined: 04-20-2004

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Message 35 of 42 (248374)
10-02-2005 10:28 PM 		Reply to: Message 34 by Nighttrain
10-02-2005 9:55 PM

Re: Tonight's Nature is on the subject.
Yes, definitely. It's amazing to watch them.
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There are also many sea birds that carry crabs and shellfish up then drop them on rocks to crack them open.
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Aslan is not a Tame Lion
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jar
Member (Idle past 424 days)
Posts: 34026
From: Texas!!
Joined: 04-20-2004

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Message 38 of 42 (248464)
10-03-2005 9:42 AM 		Reply to: Message 37 by Omnivorous
10-03-2005 9:23 AM

Re: More on capuchin monkeys
Thanks. I was aware of her studies there in Atlanta, and I've spent some time over at the Primate Center. You can find more info on her webpage.
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The really exciting thing for me was seeing the videos from the wild. In the video, the monkeys had a stone that had obviously (based on the amount of wear) been used for many, many decades at the least. It was used as the anvil. The stones used to break the nuts were carried from a riverbed over a mile away, and left on the anvil to be jointly used. Some of the hammer stones weighed as much as the monkey itself.
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The monkeys also exhibited several other examples of both intellegence and cooperation. When the nuts were first harvested they would tear open one small hole in the end and drink the juice from inside (much as we do with coconuts). To determine which were ripe, the monkeys would tap on the nut and listen to the sound. Only ripe nuts were selected.
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After they drank the juice they did not immediately try to crack the nut open. Instead they would remove all of the husk and set it aside and let it dry. Only dried, aged nuts were taken to the anvil. Often one monkey would help by placing the nut in a recess on the anvil while another used the stone as a hammer.
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Aslan is not a Tame Lion
This message is a reply to:
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jar
Member (Idle past 424 days)
Posts: 34026
From: Texas!!
Joined: 04-20-2004

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Message 40 of 42 (248477)
10-03-2005 10:11 AM 		Reply to: Message 39 by Omnivorous
10-03-2005 10:04 AM

Re: More on capuchin monkeys
Yes. Sarah Brosnan also ran similar studies the Chimps and found that they too reflect much the same variety of reactions as do humans. You can read her report from last year here.
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Aslan is not a Tame Lion
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