In central Idaho, local hostility to wolves expresses itself on signs along the highway. Many residents don't like the wolves because the animals kill elk, livestock and pets. Martin Kaste/NPR hide caption

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Gray Wolf In Cross Hairs Again After Delisting

Congress removed the gray wolf from federal protection last month. Many locals and some conservationists in the Mountain West agree the delisting may not be the worst thing.

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Mighty Mouse? Male Alston's mice use high-frequency songs to entice females. Bret Pasch/University of Florida hide caption

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A female mosquito acquires a blood meal. This species, Aedes aegypti, carries and transmits the dengue fever virus. James Gathany/CDC hide caption

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