Animals
- 			 Animals AnimalsAnts were among the world’s first farmers50 years ago, researchers began unraveling the secrets to Attine ants’ green thumbs. 
- 			 Earth EarthDino-dooming asteroid impact created a chilling sulfur cloudThe Chicxulub impact spewed more sulfur than previously believed. 
- 			 Animals AnimalsGreat praise for categories, and seeing beyond themActing Editor in Chief Elizabeth Quill discusses classification and some of the challenges of putting species in categorical boxes. 
- 			 Health & Medicine Health & MedicineReaders intrigued by ancient animals’ bonesReaders had questions about gut bacteria, woolly rhino ribs and ancient horses hooves. 
- 			 Animals AnimalsThis sea slug makes its prey do half the food catchingNudibranchs’ stolen meals blur classic predator-prey levels. By Susan Milius
- 			 Life LifeHybrids reveal the barriers to successful mating between speciesScientists don’t understand the process of speciation, but hybrids can reveal the genes that keep species apart. 
- 			 Animals AnimalsScary as they are, few vampires have a backboneResearchers speculate on why there are so few vampires among vertebrates. By Susan Milius
- 			 Animals AnimalsHere’s the real story on jellyfish taking over the worldIn 'Spineless,' a former marine scientist reconnects with the seas and science through her obsession with these enigmatic creatures. 
- 			 Animals AnimalsClimate change may threaten these bamboo-eating lemursLonger dry spells and more nutrient-poor bamboo might eventually doom the greater bamboo lemur, a critically endangered species. By Susan Milius
- 			 Paleontology PaleontologyT. rex’s silly-looking arms were built for slashingTyrannosaurus rex may have used its small arms for slashing prey. 
- 			 Life LifeNanoscale glitches let flowers make a blue blur that bees can seeBees learn about colorful floral rings faster when nanoscale arrays aren’t quite perfect. By Susan Milius
- 			 Life LifeHow bird feeders may be changing great tits’ beaksLonger beaks may be evolving in U.K. great tits because of the widespread use of bird feeders in the country.