Their home ranges lie on opposite ends of the world, yet they share a common trait: The North American raccoon (Procyon lotor) and the raccoon dog (Nyctereutes procyonoides), originally a native of Asia, were both brought to Europe during the 20th century in the wake of fur farming and as prey animals for hunters. Since then, both species have spread over wide areas. Throughout Europe, the raccoon is now established in 20 countries, while the raccoon dog inhabits as many as 33 countries.
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Source: Phys.org