The chemical secrets behind vanilla's allure

From ice cream to lattes, vanilla is one of the most popular spices in the world. It's also one of the most labor-intensive to produce, and shortcuts lead to a less tasty product. Today, scientists report a profile of 20 ...

Review explores how birds can stay slim, even when they overeat

Noticing that songbirds, such as finches, never seem to get fat despite overeating at bird feeders, London environmental biologist Lewis Halsey wondered whether the amount of energy birds put into singing, fidgeting, or exercising ...

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