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Rudy Garns

What the small-brained hobbit reveals about primate evolution - 0 views

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    Is bigger always better? When it comes to brain size, that has long been the prevailing theory-at least among big-brained humans. But a new analysis shows that in the course of primate evolution, brains and brawn haven't always been on the rise.
Rudy Garns

Feet hold the key to human hand evolution - 0 views

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    Scientists may have solved the mystery of how human hands became nimble enough to make and manipulate stone tools.
Rudy Garns

Meat may be the reason humans outlive apes - 0 views

  • humans apparently evolved unique variants in a cholesterol-transporting gene, apolipoprotein E, which regulates chronic inflammation as well as many aspects of aging in the brain and arteries.
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    Chimps and apes are genetically so similar to humans - and their human-like gestures do remind us how close we are on the family tree - that scientists have long been puzzled why they don't live as long as we do. Diet-related evolutionary changes may explain it.
Rudy Garns

The Human Spark, episode 1 | john hawks weblog - 0 views

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    Hawks provides a brief summary/commentary of the PBS Human Spark, ep. 1
Rudy Garns

The Evolution of the Human Capacity for Killing at a Distance (Podcast) - 0 views

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    Duke University anthropologist Steven Churchill presents his research on the evolutionary origins of projectile weaponry, and how weapon use changed interactions between humans and other species-including, perhaps, the Neandertals. (October 20, 2009) » American Scientist
Rudy Garns

How We Evolve - 0 views

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    A growing number of scientists argue that human culture itself has become the foremost agent of biological change. (Seed)
Rudy Garns

Meet the Family: Human Evolution - 0 views

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    YouTube video on human evolution. « Neuroanthropology
Rudy Garns

Neanderthals, Brain Size, and Maturation - 0 views

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    There is a new paper coming out in PNAS called Neanderthal brain size at birth provides insights into the evolution of human life history (Afarensis)
Rudy Garns

Merlin Donald on the evolution of human consciousness - 0 views

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    Canadian psychologist, Merlin Donald, explains the evolution of humans' uniquely collective mind as he outlines his theory of the evolution of human consciousness:
Rudy Garns

Terrence Deacon on the symbolic species - 0 views

  • language is not merely a mode of communication, it is also the outward expression of an unusual mode of thought—symbolic representation
  • [In] indexical association, [t]he word (iconically associated with past occurrences of similar utterances) and the object (iconically associated with past occurrences of similar utterances) and the object (iconically associated with similar objects from past experiences) and their past correlations enable the word to bring the object to mind .
  • [T]he major structural and functional innovations that make human brains capable of unprecedented mental feats evolved in response to the use of something as abstract and virtual as the use of words ... [T]he first use of symbolic reference by some distant ancestors changed how natural selection processes have affected hominid brain evolution ever since.
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  • [S]ymbolic reference itself must have been the prime mover for the prefrontalization of the brain in hominid evolution. Language has given rise to a brain which is strongly biased to employ the one mode of associative learning that is most critical to it.
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    Neuroscientist Terence Deacon argues that the emergence of symbolic capacities unique to language were a key factor in the evolution of the human brain, and are a key to distinguishing human from animal forms of communication, ways of learning and brain s
Rudy Garns

Recent acceleration of human adaptive evolution - 0 views

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    Hawks J, Wang E. T., Cochran G. M., Harpending H. C., and Moyzis R. K., Recent acceleration of human adaptive evolution, PNAS (early online) doi:10.1073/pnas.0707650104
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