Sentences with phrase «of toolmaking»

143 William H. Calvin, «Rediscovery and the cognitive aspects of toolmaking: Lessons from the handaxe,» short commentary at http://faculty.washington.edu­/wcalvin­/2001/handaxe.htm

Hominids start to use stone tools regularly, created by splitting pebbles — this starts Oldowan tradition of toolmaking, which last a million years

«They've reached levels of toolmaking proficiency generally associated with an animal with a big brain, dextrous hands and symbolic language — in other words humans,» says Gavin Hunt, a biologist at the University of Auckland.

Only the groups in which gestural or verbal teaching was allowed performed significantly above the reverse engineering baseline on several indicators of toolmaking skill, such as the total number of flakes produced that were long enough and sharp enough to be viable and the proportion of hits that resulted in a viable flake.

Not exact matches

We provide expertise in fine toolmaking, machining, precision finishing of products and hardening and grinding which can be used to develop prototype instruments.

New Caledonian crows may force us to reassess the mental abilities of our first toolmaking ancestors.

Another weakness of the study, Stout adds, is that the subjects were given only 5 minutes to learn the toolmaking techniques, and then no more than 25 minutes to produce Oldowan flakes.

The researchers conclude that the successful spread of even the earliest known toolmaking technology, more than 2 million years ago, would have required the capacity for teaching, and probably also the beginnings of spoken language — what the researchers call protolanguage.

Major changes in Stone Age toolmaking in the area were less dependent on movements of H. sapiens out of Africa than investigators have often proposed, Pappu contends.

Those scattered, humanlike populations shared a common toolmaking ancestry, «but perhaps little else,» contends Adler, of the University of Connecticut in Storrs.

Genetic evidence suggests H. sapiens spread across South Asia only after 60,000 years ago, possibly influencing toolmaking techniques of the region's native Homo populations only at that late date, Petraglia suggests.

One of these offshoots evolved long legs, toolmaking hands and an enormous brain.

For much more on the toolmaking crows of New Caledonia read the Look!

The remarkable toolmaking talent of a New Caledonian crow called Betty has challenged the chimpanzee's reputation as the most proficient toolmaker in the animal world.

Perhaps they wanted to keep the stinky fumes of fires for cooking or toolmaking away from their home caves, and so they lit those fires farther afield — where the evidence more easily washed away, or hasn't yet been found.

Although meat eating helped to shape the evolution of human brains, behavior and toolmaking, our early ancestors seem to have been better scavengers than hunters

A 790,000 - year - old hominid settlement in northern Israel, excavated by archaeologists from the Hebrew University of Jerusalem, appears to have been divided into distinct functional spaces, with a hearthside food preparation area and a spot dedicated to flint toolmaking.

«It's been proposed that Neanderthals depended on visual - spatial abilities and toolmaking, for survival, more so than on the social affiliation and group activities that typify the success of modern humans — and that Neanderthal brains evolved to preferentially support these visuospatial functions,» Berman explained.

To test whether learning with language impacts which brain networks are involved in stone toolmaking, 15 of the 31 participants learned to knap stone via verbal instruction by watching videos of a skilled knapper's hands during individual training sessions.

LEAKEYS DENY, Roger Lewin, Ed., Research News, Science, Richard and his parents, Louis and Mary, have held to a view of human origins for nearly half a century now that the line of true man, the line of Homo - large brain, toolmaking and so on - has a separate ancestry that goes back millions and millions of years.

In the Brevia section of the 9 August 2002 issue of Science, Weir et al. report a remarkable observation: The toolmaking behavior of New Caledonian crows.