News tagged with size
UCLA life scientists view biodiversity through a whole new dimension
(Phys.org) -- How can blue whales, the largest animals on the planet, survive by feeding on krill, shrimp-like creatures that are the size of a penny? According to UCLA life scientists, it's all a matter of ...
May 31, 2012 |
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Hacking code of leaf vein architecture solves mysteries, allows predictions of past climate
(Phys.org) -- UCLA life scientists have discovered new laws that determine the construction of leaf vein systems as leaves grow and evolve. These easy-to-apply mathematical rules can now be used to better ...
May 23, 2012 |
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Big-mouthed babies drove the evolution of giant island snakes
Some populations of tiger snakes stranded for thousands of years on tiny islands surrounding Australia have evolved to be giants, growing to nearly twice the size of their mainland cousins. Now, new research ...
May 15, 2012 |
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Foxtail millet genome sequence completed
BGI, in cooperation with Zhangjiakou Academy of Agricultural Science, has completed the genome sequence and analysis of foxtail millet (Setaria italica), the second-most widely planted species of millet. This study provid ...
May 13, 2012 |
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Monkeys with larger friend networks have more gray matter
New research in the UK on rhesus macaque monkeys has found for the first time that if they live in larger groups they develop more gray matter in parts of the brain involved in processing information on social ...
Other Sciences / Social Sciences
Nov 04, 2011 |
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Whale population size, dynamics determined based on ancient DNA
Estimates of whale population size based on genetics versus historical records diverge greatly, making it difficult to fully understand the ecological implications of the large-scale commercial whaling of the 19th and early ...
May 09, 2012 |
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Physicists Show that Correlated Environmental Variations Can Quicken Extinctions
(PhysOrg.com) -- In general, population extinction is a natural process. For one reason or another, an estimated 99.9% of all species that have lived on Earth are now extinct. However, the reasons for a species ...
Jan 13, 2009 |
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Eye size determined by maximum running speed in mammals
Maximum running speed is the most important variable influencing mammalian eye size other than body size, according to new research from The University of Texas at Austin.
May 02, 2012 |
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Low oxygen triggers moth molt
A new explanation for one of nature's most mysterious processes, the transformation of caterpillars into moths or butterflies, might best be described as breathless.
Aug 22, 2011 |
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Social wasps show how bigger brains provide complex cognition
Across many groups of animals, species with bigger brains often have better cognitive abilities. But it's been unclear whether overall brain size or the size of specific brain areas is the key.
Apr 11, 2011 |
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Dogs can tell canine size through growls
(PhysOrg.com) -- New research has demonstrated that dogs can tell the size of another dog by listening to its growls. They are able to do this so accurately they can match the growl to a photograph of a dog ...
Dec 17, 2010 |
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Particle physics: 'Honey, I shrunk the proton'
Scientists lobbed a bombshell into the world of sub-atomic theory on Wednesday by reporting that a primary building block of the visible Universe, the proton, is smaller than previously thought.
Jul 07, 2010 |
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Rare supercell thunderstorm in Hawaii produces record size hailstone
(PhysOrg.com) -- A March 9 thunderstorm that struck the island of Oahu produced unusually large hailstones, one of which measured over four inches long, a record for the state which rarely sees hail at all. ...
Space & Earth / Earth Sciences
Mar 27, 2012 |
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Research reveals evolution of earliest horses was driven by climate change, global warming affected body size
When Sifrhippus, the earliest known horse, first appeared in the forests of North America more than 50 million years ago, it would not have been mistaken for a Clydesdale. It weighed in at around 12 pounds ...
Feb 23, 2012 |
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'Shish kebab' structure provides improved form of 'buckypaper'
Scientists are reporting development of a new form of buckypaper, which eliminates a major drawback of these sheets of carbon nanotubes -- 50,000 times thinner than a human hair, 10 times lighter than steel, ...
Nanotechnology / Nanomaterials
Feb 08, 2012 |
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