Animals
- 			 Animals AnimalsDeepwater dweller is first known warm-hearted fishThe opah, a deep-diving fish, can keep much of its body warmer than its surroundings, making it similar to warm-blooded birds and mammals. By Susan Milius
- 			 Neuroscience NeuroscienceFruit flies flee from shadowsStudying flies’ responses to an ominous shadow may lead to a deeper understanding of humans’ emotions. 
- 			 Animals AnimalsEarly research asked whether cats dreamEarly research asked whether cats dream; researchers still don’t know definitively. 
- 			 Animals AnimalsNighttime light pollution sabotages sex pheromones of mothsArtificial lighting at night can trick female moths into releasing skimpy, odd-smelling sex pheromones. By Susan Milius
- 			 Animals AnimalsPruning bug genitals revives puzzle of extra-long malesSurgical approach highlights question of length mismatch in his and hers morphologies. By Susan Milius
- 			 Animals AnimalsAn island in the Maldives is made of parrotfish poopCoral-eating parrotfish create much of the sediment that a reef island is made of, a new study finds. 
- 			 Paleontology PaleontologyAncient brain fossils hint at body evolution of creepy-crawliesFossilized brains — found in the Burgess Shale in western Canada — offer clues to how arthropods morphed from soft- to hard-bodied animals. 
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- 			 Animals AnimalsAnimal moms sacrifice a lot — sometimes even themselvesIn the animal kingdom, there are bad mothers and good ones — and then there are those that let their kids eat them. 
- 			 Climate ClimateFlood planners should not forget beaversBeaver dams can reduce flooding downstream, new research shows. 
- 			 Animals AnimalsIvory listings found on Craigslist as elephant poaching continuesElephants are hunted by the thousands to meet demand for ivory products. 
- 			 Paleontology PaleontologyOldest known avian relative of today’s birds found in ChinaFossil find suggests modern birds’ oldest avian relative lived about 6 million years before previous record holder. By Meghan Rosen