Animals
- 			 Animals AnimalsBirds learn what danger sounds likeIn just two days, superb fairy-wrens learned to recognize an unfamiliar alarm call as a sign that a predator loomed. 
- 			 Animals AnimalsFeeding seabirds may give declining populations a boostSupplementing the diets of kittiwakes with additional food might give fledglings a head start, a new study finds. 
- 			 Paleontology Paleontology50-million-year-old fossil sperm discoveredAncient worm sperm preserved in 50-million-year-old cocoons from Antarctica set age record. By Meghan Rosen
- 			 Animals AnimalsSome animals’ internal clocks follow a different drummerCircadian clocks in some animals tick-tock to a different beat. 
- 			 Life LifeA downy killer wages chemical warfareThe common fungus Beauveria bassiana makes white downy corpses of its victims. By Beth Mole
- 			 Animals AnimalsChildren’s classic ‘Watership Down’ is based on real scienceThe novel ‘Watership Down’ is the tale of a bunch of anthropomorphized rabbits. Their language may be unreal, but the animals’ behavior was rooted in science. 
- 			 Animals AnimalsGiant pandas live in the slow laneGiant pandas burn far less energy than similarly sized land mammals. By Meghan Rosen
- 			 Climate ClimateBumblebee territory shrinking under climate changeClimate change is shrinking bumblebee habitat as southern territories heat up and bumblebees hold their lines in the north. By Beth Mole
- 			 Animals AnimalsCuckoos may have a long-lasting impact on other birdsSome birds that don’t have to worry about parasites like cuckoos reject eggs that aren’t their own. It might be a legacy of long-ago parasitism. 
- 			 Animals AnimalsSeabirds may navigate by scentShearwaters may use olfactory cues to find islands far across the open ocean, a new study suggests. 
- 			 Animals AnimalsWhy seahorses have square tails3-D printed seahorse tails reveal possible benefits of square cross-sections for armor and gripping. By Susan Milius
- 			 Life LifeGenetic tweak hints at why mammoths loved the coldAn altered temperature sensor helped mammoths adapt to the cold.