News tagged with size
Big brains arose twice in higher primates
Biology /
Jul 09, 2008 |
4.6 / 5 (26) |
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After taking a fresh look at an old fossil, John Flynn, Frick Curator of Paleontology at the American Museum of Natural History, and colleagues determined that the brains of the ancestors of modern Neotropical ...
Signs of Alzheimer's disease may be present decades before diagnosis
Aug 11, 2008 |
4.8 / 5 (20) |
0
Scientists from the University of South Florida and the University of Kentucky report that people who develop Alzheimer's disease may show signs of this illness many decades earlier in life, including compromised educational ...
Big-brained animals evolve faster
Biology /
Aug 15, 2008 |
4.4 / 5 (20) |
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Ever since Darwin, evolutionary biologists have wondered why some lineages have diversified more than others. A classical explanation is that a higher rate of diversification reflects increased ecological ...
Bigger not necessarily better, when it comes to brains
Nov 17, 2009 |
4.5 / 5 (19) |
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(PhysOrg.com) -- Tiny insects could be as intelligent as much bigger animals, despite only having a brain the size of a pinhead, say scientists at Queen Mary, University of London.
New analysis shows 'hobbits' couldn't hustle
Other Sciences / Archaeology & Fossils
May 06, 2009 |
4.7 / 5 (13) |
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A detailed analysis of the feet of Homo floresiensis—the miniature hominins who lived on a remote island in eastern Indonesia until 18,000 years ago -- may help settle a question hotly debated among paleontologists: how si ...
Life got bigger in two, million-fold leaps, scientists say
Space & Earth / Earth Sciences
Dec 22, 2008 |
4.6 / 5 (13) |
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(PhysOrg.com) -- Extremes are exciting. Does anyone really think dinosaurs would capture our imagination the way they do if they hadn't been so huge? You don't see natural history museums vying for fossil skeletons ...
Controlling the Size of Nanoclusters: First Step in Making New Catalysts
Jul 09, 2008 |
4.1 / 5 (13) |
2
Researchers from the U.S. Department of Energy's Brookhaven National Laboratory and Stony Brook University have developed a new instrument that allows them to control the size of nanoclusters — groups of 10 ...
Why certain fishes went extinct 65 million years ago
Mar 26, 2009 |
4.5 / 5 (11) |
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Large size and a fast bite spelled doom for bony fishes during the last mass extinction 65 million years ago, according to a new study to be published March 31, 2009, in the Proceedings of the National Ac ...
Buried Coins Key to Roman Population Mystery?
Oct 05, 2009 |
3.5 / 5 (14) |
2
(PhysOrg.com) -- The first century BC in Italy was culturally a brilliant age, unequaled by any other period in Roman history. It was a time of Cicero, Caesar, Vergil, Horace and many other major literary ...
Birth size is a marker of susceptibility to breast cancer later in life
Sep 30, 2008 |
3.8 / 5 (12) |
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Birth size, and in particular birth length, correlates with subsequent risk of breast cancer in adulthood, according to a new study published in PLoS Medicine by researchers at the London School of Hygiene and Tropical Medici ...
Mayo researchers: Dramatic outcomes in prostate cancer study
Jun 19, 2009 |
5 / 5 (9) |
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Two Mayo Clinic patients whose prostate cancer had been considered inoperable are now cancer free thanks in part to an experimental drug therapy that was used in combination with standardized hormone treatment and radiation ...
Research backs theory on autism, schizophrenia
Nov 30, 2009 |
3.9 / 5 (11) |
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(PhysOrg.com) -- New research by Simon Fraser University evolutionary biologist Bernard Crespi reinforces his theory that autism and schizophrenia are diametric or opposite conditions based on genes.
Research shows why parents are born and not made
Biology /
Nov 03, 2008 |
3.9 / 5 (10) |
2
Research published today reveals for the first time that the different roles of mothers and fathers are influenced by genetics. The study, by the Universities of Exeter and Edinburgh, shows how variation in where males and ...
High population density triggers cultural explosions
Other Sciences / Social Sciences
Jun 04, 2009 |
4.8 / 5 (8) |
3
Increasing population density, rather than boosts in human brain power, appears to have catalysed the emergence of modern human behaviour, according to a new study by UCL (University College London) scientists published in ...
Spiders Who Eat Together, Stay Together
Biology /
Aug 05, 2008 |
4.5 / 5 (8) |
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(PhysOrg.com) -- The ability to work together and capture larger prey has allowed social spiders to stretch the laws of nature and reach enormous colony sizes, UBC zoologists have found.
