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Talking Points: Mutant roaches, Daft Punk, Hell's gates

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How is a change in taste protecting cockroaches? A mutation in German roaches ?-- the most common species of the pest found in houses, apartments, restaurants and hotels -- has made sugar taste bitter to them instead of sweet. Since most cockroach baits cover poison with a layer of glucose, a form of sugar, the change in palate enables them to avoid traps. Researchers found that seven...