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Life & Evolution

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barn owl

Barn owls’ hearing may not deteriorate over time the same way human hearing does, a new study suggests.

Harding Icefield in Alaska

SNOW DECORATION  Algae turn the snow pink and red on parts of Alaska’s Harding Icefield. New research finds that the pink snow melts faster than clean snow.

Polypterus

PRIMITIVE FISH  Polypterus (shown) is a living member of a large group of vertebrates called ray-finned fishes. New evidence suggests that ray-finned fishes arose about 360 million years ago, after a major extinction event, then their diversity exploded.

Life & Evolution

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