tool use
gregladen | September 21, 2016This is just a pointer to my latest post at 10,000 birds on a tool using crow from Hawaii, as well as recent climate change related threats to the birds of that island state.
milhayser | December 10, 2014Modern science stands on the shoulders of giants, as well as average humans, dwarves and elves, ancient civilizations, and all the bones of the dead—forgotten and otherwise. But sometimes you have to start a new branch of science from scratch. On Uncertain Principles, Chad Orzel continues his count-up to Dec. 25, the birthday of Sir Isaac Newton. Orzel explores the origins of agriculture in the Americas, where nativized people made the best of their local flora, turning a humble, nearly inedible grass into one of the biggest food staples on Earth. Chad writes, "Our other staple crops are also…
neurophilosophy | July 31, 2010THOUGHTS and actions are intimately linked, and the mere thought of an action is much like actually performing it. The brain prepares for an action by generating a motor simulation of it, praticising its execution of the movements by going through the motions invisibly. Seeing a manipulable object such as a tool, for example, automatically triggers a simulation of using it - a mental image of reaching out and grasping it with the hand that is nearest to the handle.
Motor simulations and movements are known to influence thought processes. Magnetic stimulation of the motor cortex influences…
razib | December 14, 2009
Cool new report in Current Biology, Defensive tool use in a coconut-carrying octopus:
The use of tools has become a benchmark for cognitive sophistication. Originally regarded as a defining feature of our species, tool-use behaviours have subsequently been revealed in other primates and a growing spectrum of mammals and birds...Among invertebrates, however, the acquisition of items that are deployed later has not previously been reported. We repeatedly observed soft-sediment dwelling octopuses carrying around coconut shell halves, assembling them as a shelter only when needed. Whilst being…
neurophilosophy | August 6, 2009NOT so long ago, the idea that birds might possess some form of what we call intelligence seemed quite ridiculous. Yet this view has changed dramatically in recent years, with numerous studies showing that some bird species are capable of complex cognition. Members of one family of birds in particular - the Corvidae, which includes crows, rooks and ravens - have an ability to make and use tools which is at least as sophisticated as that of chimpanzees.
Two new studies, published this week, provide yet more demonstrations of the remarkable cognitive abilities of this group of birds. One shows…
edyong | June 27, 2009
You don't have to be particularly intelligent to use tools - many animals do so, including some insects. But it takes a uniquely intelligent animal to be able to combine different tools to solve a problem. We can do it, the great apes can do it, and now the New Caledonian crow joins our exclusive club.
Animals can use tools using little more than pre-programmed behaviour patterns that require little intelligence. But combining tools, or using one tool on another (a metatool, if you will), is a different matter entirely - that takes reasoning. This type of intelligence has been the engine…
edyong | March 3, 2009In the Goualougo Triangle of the Republic of Congo, a chimpanzee is hungry for termites. Its prey lives within fortress-like nests, but the chimp knows how to infiltrate these. It plucks the stem from a nearby arrowroot plant and clips any leaves away with its teeth, leaving behind a trimmed, flexible stick that it uses to "fish" for termites.
Many chimps throughout Africa have learned to build these fishing-sticks. They insert them into termite nests as bait, and pull out any soldier termites that bite onto it. But the Goualougo chimps do something special. They deliberately fray the ends…
edyong | January 15, 2009From the carpenter choosing the right strength of drill, or the artist selecting the right weight of pencil, humans have a natural talent for picking the right tool for the job. Now, it seems that monkeys are similarly selective about their tools. In the first study of its kind, Elisabetta Visalberghi from the National Research Council, Italy, found that capuchin monkeys are able to pick stones with the right properties for nutcracking.
Capuchins often use stones to crack otherwise impenetrable nuts upon hard, flat surfaces, turning innocuous forest objects into their own hammers and anvils…
edyong | December 15, 2008 In Shark Bay, off the Western coast of Australia, a unique population of bottlenose dolphins have a unusual trick up their flippers. Some of the females have learned to use sponges in their search for food, holding them on the ends of their snouts as they rummage through the ocean floor.
To Janet Mann at Georgetown University, the sponging dolphins provided an excellent opportunity to study how wild animals use tools. Sponging is a very special case of tool use - it is unique to Shark Bay's dolphins and even there, only about one in nine individuals do it. The vast majority of them are…