News tagged with trait changes
As super-predators, humans reshape their prey at super-natural speeds
Biology /
Jan 12, 2009 |
4.2 / 5 (13) |
9
(PhysOrg.com) -- Fishing and hunting are having broad, swift impacts on the body size and reproductive abilities of fish and other commercially harvested species, potentially jeopardizing the ability of entire ...
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Warm-blooded dinosaurs worked up a sweat
Nov 11, 2009 |
5 / 5 (4) |
1
(PhysOrg.com) -- Were dinosaurs endothermic (warm-blooded) like present-day mammals and birds or ectothermic (cold-blooded) like present-day lizards? The implications of this simple-sounding question go beyond ...
Single gene may cause curly hair
Nov 10, 2009 |
4.4 / 5 (8) |
0
(PhysOrg.com) -- Scientists in Australia have identified a single gene that strongly influences whether you have curly or straight hair.
What is the meaning of 'one'? Evolutionary biologists argue for new meaning of 'organismality'
Nov 09, 2009 |
4.8 / 5 (6) |
3
Rice University evolutionary biologists David Queller and Joan Strassmann argue in a new paper that high cooperation and low conflict between components, from the genetic level on up, give a living thing its "organismality," ...
Caught in the act: Scientists find butterflies splitting into two species
Nov 05, 2009 |
4.5 / 5 (8) |
5
(PhysOrg.com) -- Breaking up may actually not be hard to do, say scientists who've found a population of tropical butterflies that may be on its way to a split into two distinct species.
Importance of different cell types underestimated
Nov 04, 2009 |
not rated yet |
0
Choosing the right cell type is particularly important in genetic studies. This is apparent from research published on 16 October in PLoS Genetics. Dutch researcher Alice Gerrits has shown how variations in the genome can in ...
When ants attack: Researchers recreate chemicals that trigger aggression
Oct 27, 2009 |
5 / 5 (5) |
0
(PhysOrg.com) -- Experiments led by researchers at the University of California, Berkeley, have demonstrated that normally friendly ants can turn against each other by exploiting the chemical cues they use ...
Anxious pregnant mothers more likely to have smaller babies
Oct 27, 2009 |
3 / 5 (2) |
0
A new study published in the journal Paediatric and Perinatal Epidemiology reveals that anxiety in pregnant women impacts their babies' size and gestational age. Specifically, women with more severe and chronic anxiety during ...
Genes that drive you to drink (but don't make you an alcoholic)
Oct 26, 2009 |
4 / 5 (1) |
0
Your genetic make up may predispose you to drink more but may not increase your genetic risk for alcoholism (alcohol dependence). Research published in the open access journal, BMC Biology, pinpoints genetic pathways and ge ...
Studies improve knowledge of underlying brain changes caused by addiction
Medicine & Health / Neuroscience
Oct 21, 2009 |
not rated yet |
0
New research using animal models is enabling a deeper understanding of the neurobiology of compulsive drug addiction in humans — knowledge that may lead to more effective treatment options to weaken the powerful cravings ...
Research team establishes family tree for cattle, other ruminants
Oct 19, 2009 |
5 / 5 (2) |
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Pairing a new approach to prepare ancient DNA with a new scientific technique developed specifically to genotype a cow, an MU animal scientist, along with a team of international researchers, created a very ...
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