Science Ticker
A roundup of research and breaking news
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We summarize the week's scientific breakthroughs every Thursday.
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		EnvironmentDeepwater Horizon oil spill caused months-long ‘dirty blizzard’
Pollution from the 2010 Deepwater Horizon oil spill accumulated on the seafloor for months after the leak was patched.
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		ClimateClimate probably stopped Mongols cold in Hungary
Mongol cavalry was no match for cold, wet climate in medieval Hungary, researchers think.
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		AnimalsAntibiotics in cattle leave their mark in dung
Treating cattle with antibiotics may have side effects for dung beetles, microbes and greenhouse gases.
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		AnimalsSnot could be crucial to dolphin echolocation
An acoustic model reveals that echolocation relies on mucus lined tissue lumps in the animal’s nasal passage.
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		ArchaeologyEvidence of 5,000-year-old beer recipe found in China
Ancient brewer’s toolkits put barley on tap in China as early as 3400 B.C.
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		Health & MedicineCDC tracking 279 U.S. pregnant women with possible Zika infections
The number of U.S. pregnant women with evidence of Zika infection has climbed to nearly 300, and includes both women with and without symptoms.
By Meghan Rosen - 			
			
		GeneticsSome Stone Age humans returned to Africa
DNA from an ancient woman suggests some humans trekked back to Africa.
By Bruce Bower - 			
			
		AnimalsHornbills join toucans in the cool beak club
Like toucans, southern yellow-billed hornbills keep things chill with cool beaks.
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		AgricultureNew analysis: Genetically engineered foods not a health risk
No real evidence for health or environmental dangers of GE crops.
By Meghan Rosen - 			
			
		Health & MedicineThis week in Zika: First mouse study proof that Zika causes microcephaly
Three new studies in mice shore up the link between microcephaly and Zika virus infection.
By Meghan Rosen - 			
			
		NeuroscienceSocial area of the brain sets threat level of animals
How people perceive an animal’s danger level is encoded in a particular wrinkle of cortex, a brain scan study suggests.
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		Particle PhysicsLarge Hadron Collider starts its 2016 physics run
Experiments at the Large Hadron Collider are taking data for the first time in 2016.