Animals
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		GeneticsThese genes may be why dogs are so friendly
Dog domestication may be the result of just a few genetic changes, including ones that made canines more interested in interacting with people.
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		GeneticsDog domestication happened just once, ancient DNA study suggests
DNA of ancient canines counters idea that dogs were domesticated twice, in Europe and Asia.
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		AnimalsWater bears will survive the end of the world as we know it
Water bears have a till-death-do-us-part pact with the sun, study suggests.
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		AnimalsRavens pass tests of planning ahead in unnatural tasks
Clever birds may have evolved their own broad powers of apelike thinking about the future.
By Susan Milius - 			
			
		AnimalsWhales feast when hatcheries release salmon
Whales: “They’re 40 feet long and they’re feeding on fish that are the size of my finger.”
By Susan Milius - 			
			
		GeneticsDNA evidence is rewriting domestication origin stories
DNA studies are rewriting the how-we-met stories of domestication.
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		AnimalsThe blue wings of this dragonfly may be surprisingly alive
The wings of adult morpho dragonflies show tiny respiratory channels that may support a complex of nanostructures that shine blue.
By Susan Milius - 			
			
		GeneticsHorse version of ‘Who’s your daddy?’ answered
Genetics and horse pedigrees reveal all modern domestic stallions’ sires.
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		PlantsFloral curve test shows what’s great for a moth is not so good for a flower
3-D printed flowers reveal a hidden conflict between a hawk moth and the flowers it pollinates.
By Susan Milius - 			
			
		AnimalsDrowned wildebeests can feed a river ecosystem for years
Only a small percentage of wildebeests drown as they cross the Mara River, but they provide resources for the river ecosystem for years after their deaths.
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		AnimalsThis glass frog wears its heart for all to see
A newly discovered glass frog species has skin so clear that it reveals most of the animal’s internal organs, including the heart.