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Physiology

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polar bear

BEARS ON ICE  A study that put camera collars on polar bears showed that the bears have higher springtime metabolic rates than previous estimates.

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.

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