has officially classified cats as an "invasive alien species," according to the Associated Press. The study, headed by PASIFIC biologist Wojciech Solarz, found that the damage that cats cause in ...

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According to the Polish Academy of Sciences, cats are an “invasive alien species.” You can find cats just about anywhere you go on the internet. Twitter? Yes. Facebook? Absolutely. YouTube?

WARSAW, Poland (AP) — A respected Polish scientific institute has classified domestic cats as an “invasive alien species,” citing the damage they cause to birds and other wildlife.