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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		AnimalsGut bacteria compounds bring cockroaches together
Gut bacteria in young German cockroaches (Blattella germanica) produce fragrant compounds that, when excreted, attract other roaches.
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		AnimalsPygmy slow loris in Asia takes unusual downtime in winter
The pygmy slow loris is the first primate outside Madagascar found to hibernate.
By Susan Milius - 			
			
		AstronomyLISA Pathfinder to pave way for gravitational wave detection
The successful launch of the LISA Pathfinder mission marks the first step toward testing techniques needed to build a space-based gravitational-wave detector.
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		PaleontologyLong-necked monsters roamed more than Scotland’s lochs
The discovery of sauropod footprints in Scotland suggest the dinosaurs lived in lagoons.
By Meghan Rosen - 			
			
		Health & MedicineTaking antiviral drug ‘on demand’ guards against HIV
The antiviral drug Truvada taken before and after sex cuts HIV transmission rates.
By Meghan Rosen - 			
			
		AnimalsMystery deepens for what made tarantulas blue
Blue hair on tarantulas shows what evolution does with iridescence that females probably don’t care about.
By Susan Milius - 			
			
		PlantsConifer ancestors had a double dose of DNA
The genomes of conifers — pine, cypress and yew trees — doubled twice in the distant past.
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		PlantsRoses rigged with electrical circuitry
Bioelectric molecules can form wires and conduct electricity in cut roses, researchers find.
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		Science & SocietyGenetically modified salmon gets approval in U.S.
Fast-growing salmon become first genetically engineered animals approved for human consumption.
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		AnimalsAdorable birds tap dance their way into the heart of a mate
Blue-capped cordon-bleu songbirds not only sing, but also tap dance to woo mates, study reveals.
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		LifeTruffles aren’t laced with radioactive cesium
Fallout from the Chernobyl disaster hasn’t made truffles dangerously radioactive, scientists find.
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		Health & MedicineStudy brews up more evidence for coffee’s health benefits
Drinking up to five cups of coffee a day reduced the risk of dying early from heart and brain diseases and suicide.