Animals
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		OceansCorals need to take their vitamin C
Newly settled corals use vitamin C to help build their stony skeletons, researchers propose.
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		AnimalsInvasive toads will probably overrun Madagascar
A new report finds that eradicating invasive Asian toads before they overtake all of Madagascar is “not currently feasible.”
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		PaleontologySurprise! Ancient armadillos are related to modern armadillos
DNA evidence proves that ancient glyptodonts are indeed related to today’s armadillos, as Charles Darwin suspected.
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		AnimalsWithout a ban on trade in old ivory, elephant killing continues
Samuel Wasser has been working to track down where poached ivory comes from. But to stop the killing, he says, a ban on the ivory trade is necessary.
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		AnimalsChubby king penguins wobble when they waddle
King penguins’ weight gain makes their waddle a bit wobbly, study suggests.
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		AnimalsSlow-moving nurse sharks have a metabolism to match
The nurse shark has the slowest metabolism of any shark measured so far, a new study finds.
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		AnimalsSaving salamanders from amphibian killer may take extreme measures
Experience from lethal Bd fungus outbreak is helping researchers defend North America’s salamander paradise from new Bsal threat.
By Susan Milius - 			
			
		AnimalsAfrica’s poison arrow beetles are key in traditional hunting method
In the Kalahari of Namibia, some San people still hunt with a traditional method — arrows laced with poison taken from beetle larvae.
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		TechThis roach-inspired robot can wiggle through tight spaces
Cockroaches inspired a compressible, crevice-navigating robot.
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		AnimalsWhite-tailed deer have their own form of malaria
The otherwise well-studied white-tailed deer turns out to carry the first malaria parasite discovered in any deer.
By Susan Milius - 			
			
		AnimalsHarvester ants are restless, enigmatic architects
Florida harvester ants dig complex, curly nests over, then leave and do it again.
By Susan Milius - 			
			
		AnimalsWhy some birds sing elaborate songs in the winter
Several obvious hypotheses fail to explain why great reed warblers sing in winter.
By Susan Milius