News
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		Particle PhysicsNeutrinos’ identity shift snares physics Nobel
Arthur McDonald and Takaaki Kajita shared the 2015 Nobel Prize in physics for the discovery that neutrinos oscillate between different types, which demonstrates that the particles have mass.
By Andrew Grant and Thomas Sumner - 			
			
		HumansChimpanzees show surprising flexibility on two feet
Chimpanzees’ upper-body flexibility while walking upright suggests ancient hominids walked effectively.
By Bruce Bower - 			
			
		Health & MedicineNobel medicine prize won for drugs from natural sources
Nobel Prizes in medicine or physiology awarded for drugs that combat roundworms and malaria
By Tina Hesman Saey and Laura Sanders - 			
			
		Science & SocietyFull coverage: 2015 Nobel Prizes
The Nobel Prizes in physics, chemistry and medicine or physiology ran the gamut this year, honoring both fundamental science discoveries and research with real-world impacts.
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		Health & MedicineFizzy bubbles carry drugs deep into wounds
Bubble-powered drugs burrow into wounds to stop blood loss.
By Meghan Rosen - 			
			
		AstronomyFirst stars may lurk in our galactic neighborhood
Representatives from the first generation of stars might be hiding in our cosmic backyard, masked by interstellar pollution.
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		EarthGiant asteroid may have triggered deadly volcano eruptions
Increased volcanic eruptions coincided much more closely with an asteroid impact and the extinction of the dinosaurs than previously believed, a new study suggests.
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		AnthropologyBronze Age mummies identified in Britain
Bone analysis finds widespread mummy making in ancient England and Scotland.
By Bruce Bower - 			
			
		AnimalsLights at night trick wild wallabies into breeding late
Artificial lighting is driving wild tammar wallabies to breed out of sync with peak season for food
By Susan Milius - 			
			
		Life‘Protocells’ show ability to reproduce
Lab-made “protocells” mimic the division process of early cells, and may help researchers understand cellular evolution.
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		AnimalsMath describes sheep herd fluctuations
Scientists have developed equations to describe the motion of a herd of sheep.