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Snakes Gain Resistance by Preying on Newts Thursday, March 13, 2008 - Ehud Rattner Home >> Headlines >> Biology   
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According to research made at Stanford's Hopkins Marine Station, snakes have evolved resistance to the blowfish poison, tetrodotoxin (TTX), by preying on rough-skinned newts, which also secrete the toxin. Some newts are so poisonous that they harbor enough TTX to kill a roomful of adult humans. Why would a small animal produce such an excessive amount of poison? The answer lies in the evolutionary back-and-forth between newts and garter snakes. (source: sciencedaily.com)
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