Radioactive tadpoles reveal contamination clues

Tadpoles can be used to measure the amount of radiocesium, a radioactive material, in aquatic environments, according to new research from University of Georgia scientists.

Bird immune systems reveal harshness of city life

They may peck greedily at feeding tables—and have it easier than country birds do in the warmer urban winters—but city birds, it turns out, are in turmoil on the inside.

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