Animals
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		AnimalsSubmariners’ ‘bio-duck’ is probably a whale
First acoustic tags on Antarctic minke whales suggest the marine mammals are the long-sought source of the mysterious bio-duck sound.
By Susan Milius - 			
			
		LifeCheetahs, but not wild dogs, manage to live with lions
One conservation tenet says that cheetahs can’t survive when lions are around, but it’s wild dogs that disappeared in one lion-dense area of the Serengeti.
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		AnimalsLittle thylacine had a big bite
A reconstruction of the skull of a thylacine, an extinct, fox-sized Australian marsupial, reveals that the animal could have eaten prey much larger than itself.
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		TechTo do: Exhibits to explore this May in D.C. and New York
Events include a celebration of science and original watercolor paintings from John James Audubon.
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		AnimalsHow a chimp goes mattress hunting
Chimpanzees prefer firm beds made of ironwood, a new study finds.
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		AnimalsMost extreme female penis is found on cave lice
Female penis, male vagina have been discovered in tiny Brazilian insects.
By Susan Milius - 			
			
		AnimalsScent of a fruit fly larva comes from its gut microbes
Microbes in the guts of fly larvae produce smells that attract fruit flies.
By Susan Milius - 			
			
		MicrobesOne giant leap for zit-causing microbes
A bacterium that lives on humans and causes acne also hopped to domesticated grapevines and relies on the plant for crucial DNA repairs.
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		ClimateReef fish act drunk in carbon dioxide–rich ocean waters
In first test in the wild, fish near reefs that bubble with CO2 lose fear of predators’ scent.
By Meghan Rosen - 			
			
		OceansThe surprising life of a piece of sunken wood
Timber and trees that wash out to sea and sink to the bottom of the ocean hold a diverse community of organisms.