ScienceDaily: Strange Science News |
- We each live in our own little world -- smellwise
- 'Evolution will punish you if you're selfish and mean'
- Under leaden skies: Where heavy metal clouds the stars
| We each live in our own little world -- smellwise Posted: 01 Aug 2013 09:52 AM PDT There are some smells we all find revolting. But toward a handful of odors, different people display different sensitivities. A pair of studies identifies the genetic differences that underpin the differences in smell sensitivity. The researchers tested 200 people for their sensitivity to 10 different chemical compounds. They then searched through the subjects' genomes for areas of the DNA that differed between people who could smell a given compound and those who could not.  |
| 'Evolution will punish you if you're selfish and mean' Posted: 01 Aug 2013 06:55 AM PDT Evolutionary biologists offer new evidence that evolution doesn't favor the selfish, disproving a theory popularized in 2012.  |
| Under leaden skies: Where heavy metal clouds the stars Posted: 01 Aug 2013 06:52 AM PDT Astronomers have discovered two unusual stars with extremely high concentrations of lead in their atmospheres.  |
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