Life
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We summarize the week's scientific breakthroughs every Thursday.
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		AnimalsLong Horns Win: Selection in action—Attacks favor spike length for lizards
A hunting bird's quirk—a tendency to impale prey on thorns—leaves a record that has allowed scientists to catch a glimpse of an evolutionary force in action.
By Susan Milius - 			
			
		AnimalsWolf vs. Raven? Thieving birds may drive canines to form big packs
A previously underappreciated reason why wolf packs get so big could be the relentless food snitching of ravens.
By Susan Milius - 			
			
		EcosystemsCoastal Surge: Ecosystems likely to suffer as more people move to the shores
Rapid development and population growth on and near U.S. coastlines in the near future will probably spell trouble for ecosystems in these areas, scientists say.
By Sid Perkins - 			
			
		PlantsSudden oak death jumps quarantine
The funguslike microbe that causes sudden oak death has turned up on nursery plants in southern California for the first time.
By Susan Milius - 			
			
		AnimalsThe Social Lives of Snakes
A lot of pit vipers aren't the asocial loners that even snake fans had long assumed.
By Susan Milius - 			
			
		AnimalsRoad rage keeps ants moving smoothly
Streams of ants manage to avoid traffic gridlock by a bit of strategic pushing and shoving.
By Susan Milius - 			
			
		AnimalsHornbills know which monkey calls to heed
Hornbills can tell the difference between two kinds of alarm calls given by monkeys.
By Susan Milius - 			
			
		AnimalsSecond bird genus shares dart-frog toxins
Researchers have found a second bird genus, also in New Guinea, that carries the same toxins as poison-dart frogs in Central and South America.
By Susan Milius - 			
			
		AnimalsNew Green Eyes: First butterfly that’s genetically modified
Scientists have genetically engineered a butterfly for the first time, putting a jellyfish protein into a tropical African species so that its eyes fluoresce green.
By Susan Milius - 			
			
		AnimalsJungle Genes: First bird genome is decoded
Researchers have unveiled a draft of the first bird genome to be sequenced, a vintage chicken.
By Susan Milius - 			
			
		PaleontologyOld Colonies: Ancient formations are termites’ legacy
New analyses of mysterious pillars at two sites in southern Africa suggest that the sandstone features are petrified remains of large, elaborate termite nests.
By Sid Perkins - 			
			
		AnimalsFox Selection: Bottleneck survivors show surprising variety
Foxes native to a California island—famous for the least genetic diversity ever reported in a sexually reproducing animal—have some variation after all.
By Susan Milius