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The tiny Amazon molly (Poecilia formosa) has always fascinated researchers because, according to the rules of evolution, it ...

Many of the most damaging invasions do not simply subtract species; they fundamentally remodel the environment, altering habitats, rewiring interactions, and shifting processes in ways that species ...

Amazon mollies don't need a man, and never will. A new study finds they can purge and repair genetic mutations that would ...