Navigation Links
New caledonian crows find 2 tools better than 1
Date:8/16/2007

Researchers have found that New Caledonian crowswhich are known to make complex food-getting tools in the wildcan also spontaneously use one tool on another to get a snack. The researchers report their findings online August 16 in Current Biology, a publication of Cell Press.

The birds' tool-use skills rival those seen among great apes, according to the researchers. Moreover, it appears that the birds may have solved the problem that confronted them by using analogical reasoning rather than simple trial and error. Analogical reasoning requires the ability to see a novel situation as being essentially the same as a previous situation, the researchers explained.

"Evidence suggests that, from the earliest human stone tools, analogical reasoning has been at the core of human innovation," said Russell Gray of the University of Auckland. "This hallmark of human intelligence may also be at work in both the great apes and New Caledonian crows and may explain why--out of all the crow species in the worldonly these crows routinely make and use tools."

In the study, the researchers presented crows with some meat in a hole and a stick that left the meat out of reach. The birds needed to get a long stick out of a "toolbox" in order to get the meat from the hole. However, the long stick was also out of reach. "The creative thing the crows did was to use the short stick to get the long tool out of the box so that they could then use the long stick to get the meat," said Alex Taylor, also of the University of Auckland.

In a second experiment, the researchers reversed the positions of the two sticks so that the small stick was inside the toolbox and the long stick was handy. The crows then briefly probed the box containing the short stick with the long stick before correcting their error by taking the stick directly to the hole.

"It was surprising to find that these 'bird-brained' creatures performed at the same levels as the best performances by great apes on such a difficult problem," Gray said. "Six out of seven birds tried to get the long stick with the short stick at their first attempt at solving the problem. To do this, they had to inhibit their normal response of trying to get the food directly with the short stick and realize that they could use the short stick to get the long stick."


'/>"/>
Contact: Nancy Wampler
nwampler@cell.com
617-386-2121
Cell Press
Source:Eurekalert

Related biology news :

1. Institute for Systems Biology Symposium Addresses Need for Better Computational Tools
2. Improved statistical tools reveal many linked loci
3. Virginia Tech group adds tools to DNA-targeted anti-cancer drugs
4. Nanoparticles, nanoshells, nanotubes: How tiny specks may provide powerful tools against cancer
5. New tools used to control foodborne hepatitis A outbreaks related to green onions
6. MWG Biotech expands siMAX?siRNA portfolio with new scales, lengths and design tools
7. New RNAi tools enable systematic studies of gene function
8. Discovery of new molecular tools for biosynthesis could lead to advances in use of pectin
9. Recycled paper and compost could both be key tools to control plant disease
10. Nanotech tools yield DNA transcription breakthrough
11. Molecular tools make the cut
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/16/2017)... , Feb. 16, 2017  Genos, a ... announced that it has received Laboratory Accreditation from ... Accreditation is presented to laboratories that meet stringent ... demonstrate scientifically rigorous processes. "Genos is ... in laboratory practices. We,re honored to be receiving ...
(Date:2/13/2017)... , Feb. 13, 2017 Former 9/11 Commission ... Judiciary Committee, Janice Kephart of Identity Strategy ... Donald Trump,s "Executive Order: Protecting the Nation ... 27, 2017):  "As President Trump,s ,Travel Ban, ... has now essentially banned the travel ban, it is ...
(Date:2/8/2017)... 8, 2017 About Voice Recognition Biometrics Voice ... it against a stored voiceprint template. Acoustic features ... and tone are compared to distinguish between individual ... as most PCs already have a microphone and ... recognition biometrics are most likely to be deployed ...
Breaking Biology News(10 mins):
(Date:2/27/2017)... ... February 27, 2017 , ... The Catalyst Midwest premix manufacturing ... Midwest offering premix services and private label organic services. , The first organic product ... Zamzow, chief operating officer of Dynamite Marketing, which owns the facility. , Catalyst already ...
(Date:2/24/2017)... ... February 24, 2017 , ... Chef Jodi Abel has ... Making stops in several cities, she gained a number of delicious recipes and ... Stellenbosch, a town in South Africa’s Western Cape province. It is internationally renowned ...
(Date:2/24/2017)... HONG KONG, Feb. 24, 2017 China Cord Blood ... "Company"), China,s leading provider of cord blood collection, laboratory ... services, today announced its unaudited financial results for the ... 2017 ended December 31, 2016. Third Quarter ... the third quarter of fiscal 2017 increased by 18.6% ...
(Date:2/23/2017)... NEW YORK , Feb. 23, 2017 /PRNewswire/ ... leading digital health company, and Digital Noema ... and remote patient monitoring, announce they are partnering ... DN Telehealth maximizes collaboration compatibility for ... consultations beyond a physical clinical setting to include ...
Breaking Biology Technology: