'Nature's mirror': Climate change batters Albania's butterflies

Bright yellow, black, red and blue, Alexanor butterflies once fluttered abundantly on southwestern Albania's flowery slopes. Now, like many related species, scientists say they are disappearing due to human impacts, including ...

Why some plant diseases thrive in urban environments

Rachel Penczykowski, an assistant professor of biology in Arts & Sciences at Washington University in St. Louis, and five WashU graduate and undergraduate students tracked infestations of powdery mildew on common broadleaf ...

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