Photo: Czarek Sokolowski/AP Photo

A scientific institute in Poland officially classified domestic cats as an “invasive alien species.”
Wojciech Solarz, the biologist at the institute who the AP described as “the key scientist” behind the decision, told the AP on Tuesday that backlash in the country toward the designation may be a result of erroneous reports that created a “false impression” the Polish Academy of Sciences had called for feral and other cats to be euthanized.
Last week, Solarz appeared on television in Poland to discuss the matter with veterinarian and author Dorota Suminska, who argued that cats are “unfairly assigned too much blame,” according to the AP.
Czarek Sokolowski/AP Photo

Suminska, 64, said that pollution and urban building development harm biodiversity and asked “if man is on the list of non-invasive alien species” in her defense of cats.
According to Solarz, cats kill roughly 140 million birds in Poland every year.
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The Polish Academy of Sciences published a statement on its website earlier this month to address the matter and attempted to clarify its position. It said it was “opposed to any cruelty toward animals,” according to the AP.
The institute also stated that “Felis catus,” the scientific name for the housecat, is considered alien to Europe “from a strictly scientific point of view” given that the species was domesticated thousands of years ago in the ancient Middle East.
The Polish Academy of Sciences recommended that cat owners limit the amount of time their pets spend outdoors during bird breeding season to reduce the feline’s harmful impact on biodiversity, according to the AP.
“I have a dog, but I don’t have anything against cats,” Solarz told the AP.
In the United States, the National Invasive Species Information Center, which falls under the U.S. Department of Agriculture, defines an “invasive species” as “non-native (or alien) to the ecosystem under consideration” and “whose introduction causes or is likely to cause economic or environmental harm or harm to human health.”
source: people.com