Routine Tool Use By Wild Monkeys Observed

University of Georgia psychologist Dorothy Fragaszy and co-researchers, have just published the first direct scientific report of tool use among a population of wild capuchin monkeys. There have been reports of single instances of this behavior but never of a whole population using tools routinely over a long period of time. Using heavy stones transported to an “anvil” site in northeastern Brazil, the cat-sized monkeys routinely crack palm nuts, which grow in clusters close to the ground. This is the first scientific report to confirm a behavior previously studied only in wild populations of chimpanzees.

The study, appearing in the American Journal of Primatology adds important new information to the increasing body of knowledge that human beings are not the only primates who use tools. At one time, the use of tools was considered an important difference between humans and other primates, but scientists some time ago discovered that chimpanzees in the wild use tools in several ways.

“One of the most significant things about this research is that we see the behavior in an entire population and not in isolated individuals,” said Fragaszy. “Also, it is the first time this behavior has been observed in wild capuchins. What we found is that these capuchins are extremely skilled weightlifters. The video we took of them cracking stones shows just how remarkable their ability to lift these stones has become.”

The researchers observed the monkeys using two forms of action to crack nuts. In one, the monkey sat or stood bipedally, held the stone in both hands and raised and lowered the stone with arm and shoulder movements. A more strenuous method involves a monkey rising quickly to a nearly vertical position by standing explosively and raising the stone to shoulder height before crashing it down on the nut. This is the first time such behavior has been reported in a wild population.

, ,

Comments are closed.

Original Fisherman's Friend by Monkey Pipe 100% AUTHENTIC picture

Original Fisherman's Friend by Monkey Pipe 100% AUTHENTIC

$32.99



Follow The Leader Emmett Kelly Jr 1991 Flambro Monkey picture

Follow The Leader Emmett Kelly Jr 1991 Flambro Monkey

$125.00



VTG Monkey Ape Gorilla Mini Minature Figurine Figure Lot Of 26 Mixed Materials picture

VTG Monkey Ape Gorilla Mini Minature Figurine Figure Lot Of 26 Mixed Materials

$80.96



Vintage & Collectable Accents Unlimited Smiling Monkey Figurine Plaster 1980 picture

Vintage & Collectable Accents Unlimited Smiling Monkey Figurine Plaster 1980

$29.99



Vintage small brass figurine 3 wise monkeys See Hear Speak No Evil  picture

Vintage small brass figurine 3 wise monkeys See Hear Speak No Evil

$18.50



Cast See Speak Hear No Evil Monkeys 3

Cast See Speak Hear No Evil Monkeys 3" Metal Bronze Color

$16.99



Vintage Three Wise Monkeys See No Evil Hear No Evil Speak No Evil - Japan picture

Vintage Three Wise Monkeys See No Evil Hear No Evil Speak No Evil - Japan

$5.99



Speak No Evil Capuchin Monkey Statue Paper Weight Collectable Sculpture Safari picture

Speak No Evil Capuchin Monkey Statue Paper Weight Collectable Sculpture Safari

$12.00



St Louis MO-Missouri, Monkey House in Forest Park, Antique Vintage Postcard picture

St Louis MO-Missouri, Monkey House in Forest Park, Antique Vintage Postcard

$14.99



Vintage Capuchin Monkey and Baby Figurine Statue Art Pottery Majolica 10x10

Vintage Capuchin Monkey and Baby Figurine Statue Art Pottery Majolica 10x10"

$82.45



Powered by WordPress. Designed by WooThemes