Genetics
- 			 Genetics GeneticsGene thought to cause obesity works indirectlyResearchers have discovered a “genetic switch” that determines whether people will burn extra calories or save them as fat. 
- 			 Chemistry ChemistryPathway pieced together to make opiates in yeastScientists have engineered yeast to make sugar into thebaine, a precursor to opiates such as morphine. 
- 			 Genetics GeneticsHow an octopus’s cleverness may have evolvedScientists have sequenced the octopus genome, revealing molecular similarities to mammals. 
- 			 Genetics GeneticsAncestral humans had more DNAA new genetic diversity map marks where humans have gained and lost DNA. 
- 			 Genetics GeneticsHow Ethiopian highlanders adapted to breathe thin airLower levels of a heart protein may help Ethiopian highlanders breathe thin air, researchers report. 
- 			 Genetics GeneticsWolves in jackals’ clothingAfrica’s golden jackals are really a species of wolf and deserve a name change, DNA evidence indicates. 
- 			 Life LifeThe tree of life gets a makeoverBiology’s tree of life has morphed from the familiar classroom version emphasizing kingdoms into a complex depiction of supergroups, in which animals are aligned with a slew of single-celled cousins. By Susan Milius
- 			 Genetics GeneticsResearch teams duel over Native American originsGenetic link between Australia and the Amazon fuels two interpretations of Native American origins. 
- 			 Genetics GeneticsMelonomics: Sounds like a cancer, smells like a melonThe project that published the first melon genome dubbed itself melonomics. 
- 			 Earth EarthBringing mammoths back, life on early Earth and more reader feedbackReaders debate the pros and cons of reviving extinct species, discuss the odd light-processing machinery of the eye and more. 
- 			 Genetics GeneticsEnormous quantities may soon be called ‘genomical’Genetic data may soon reach beyond astronomical proportions. 
- 			 Genetics GeneticsGenetic switch wipes out tumors in miceBy switching on a single gene, researchers turned cancer cells in mice back into normal intestinal tissue. By Meghan Rosen