Animals
- 			 Animals AnimalsSpecialized protein helps these ground squirrels resist the coldA less active cold-sensing protein explains, in part, why some hibernating ground squirrels are more tolerant of chilly conditions than the animals’ nonhibernating kin. 
- 			 Animals AnimalsIn marine mammals’ battle of the sexes, vaginal folds can make the differencePatricia Brennan and colleagues found certain female ocean mammals have vaginal folds that give them an advantage in mating 
- 			 Neuroscience NeuroscienceIn a tally of nerve cells in the outer wrinkles of the brain, a dog winsAmong some carnivores, golden retrievers rate at the top for numbers of nerve cells, study finds. 
- 			 Science & Society Science & SocietyThese are the most-read Science News stories of 2017From Cassini and eclipses to ladybugs and dolphins, Science News online readers had a wide variety of favorite stories on our website. 
- 			 Animals AnimalsTicks had a taste for dinosaur bloodA tick found trapped in amber is evidence the bloodsuckers preyed on feathered dinosaurs, a new study says. 
- 			 Animals AnimalsOnce settled, immigrants play important guard roles in mongoose packsDwarf mongoose packs ultimately benefit from taking in immigrants, but there’s an assimilation period. 
- 			 Animals AnimalsThis ancient marsupial lion had an early version of ‘bolt-cutter’ teethExtinct dog-sized predator crunched with unusual slicers toward the back of its jaw. By Susan Milius
- 			 Animals AnimalsNarwhals react to certain dangers in a really strange wayAfter escaping a net, narwhals significantly lower their heart rate while diving quickly to get away from humans. 
- 			 Artificial Intelligence Artificial IntelligenceAI eavesdrops on dolphins and discovers six unknown click typesAn algorithm uncovered the new types of echolocation sounds among millions of underwater recordings from the Gulf of Mexico. 
- 			 Paleontology PaleontologyThis new dinosaur species was one odd duckWeird dino swimmer had flipperlike limbs and a swanlike neck. 
- 			 Animals AnimalsScallops’ amazing eyes use millions of tiny, square crystals to seeEach of a scallop’s many eyes contains an intricate mirror made from millions of crystals. 
- 			 Genetics GeneticsBats in China carry all the ingredients to make a new SARS virusViruses infecting bats could recombine to re-create SARS.