Search our collection of background (non-event) articles from news media, science journals and other sources.
Lichens can provide valuable information about air quality and environmental conditions, as different species have different sensitivities to pollution and humidity levels, making them useful indicators of climate and pollution levels in a given area.
Nearly 1,000 migrating birds died after crashing into a building in Chicago due to a confluence of specific conditions, including unfavorable weather and lights being left on in the building.
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