Ghost peppers are saving U.S. grasslands—by scaring off hungry mice

Read the full story in Science.

Conservationists trying to restore the United States’s grasslands kept running into a problem: As soon as they planted the seeds meant to bring back native flora, hungry mice would gobble them up. In an effort to deter the rodents, biologists tried coating the seeds with capsaicin, the active ingredient that gives chili peppers their signature fiery taste. It worked: Dusting the seeds with chili powder reduced the number of seeds consumed by deer mice by 86%, researchers report in Restoration Ecology.

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