Animals
- 			 Animals AnimalsSome warblers make their long winter migration even longerBlackpoll warblers in western North America head east to fatten up before their transoceanic migration. 
- 			 Animals AnimalsPlayful pups conceived via in vitro fertilization for the first timeScientists have solved the mystery of how to perform in vitro fertilization in dogs, which could help rid canines of heritable diseases. By Meghan Rosen
- 			 Animals AnimalsWater bears’ genetic borrowing questionedA new analysis of tardigrade DNA suggests that water bears don’t swap many genes with other organisms after all. 
- 			 Animals AnimalsFor male peacock spiders, the best dancers get the girlMale peacock spiders dance to attract the ladies. And those that perform the best get the girl, a new study finds. 
- 			 Animals AnimalsGut bacteria’s compounds bring cockroaches togetherGerman cockroaches may rely on gut bacteria to help attract fellow roaches. 
- 			 Animals AnimalsGut bacteria compounds bring cockroaches togetherGut bacteria in young German cockroaches (Blattella germanica) produce fragrant compounds that, when excreted, attract other roaches. 
- 			 Animals AnimalsPygmy slow loris hibernates in winterThe pygmy slow loris truly hibernates, making it the first primate found outside Madagascar to do so, a new study says. By Susan Milius
- 			 Animals AnimalsA single penguin can break up a huddleA new study documents how penguins regulate body temperature by forming huddles and breaking groupings apart. 
- 			 Animals AnimalsPygmy slow loris in Asia takes unusual downtime in winterThe pygmy slow loris is the first primate outside Madagascar found to hibernate. By Susan Milius
- 			 Plants PlantsPretty flower uses dead arthropods to lure protectorsA sticky columbine from California lures arthropods to their death to lure protectors to the plant, a new study suggests. 
- 			 Animals AnimalsInside the roaring sex lives of howler monkeysListening to the intense roars of howler monkeys in Mexico inspired scientists to decipher how and why calls differ among species. 
- 			 Animals AnimalsMystery deepens for what made tarantulas blueBlue hair on tarantulas shows what evolution does with iridescence that females probably don’t care about. By Susan Milius