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Hummingbird Evolution Is Booming

Hummingbirds took just 22 million years to diversify from a single common ancestor into 338 tiny, colorful species. And they have not finished yet. Evolutionary biologist Jim McGuire of the…

Pesticides Make the Life of Earthworms Miserable

Pesticides have a direct impact on the physiology and behavior of earthworms, a Danish/French research team reports after having studied earthworms that were exposed to pesticides over generations. “We see…