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Physiology

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sparrow

ABOUT THAT LIGHT Another reason for caution in lighting up the night comes from a study of house sparrow difficulties in fighting off West Nile virus, which mosquitoes biting the birds can then spread to people.

Blowfly

UNUSUALLY COOL  If this blowfly starts overheating, it has a drool, reswallow, repeat  trick for reducing its temperature.

ROBO-FISH  Tests with this robot snailfish, whose shape came from photographs of a real fish snapped from different angles, reveal why the deep-sea fish has a mysterious goo in its body.

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