Native species are naturally occurring species that exist in a region without human intervention, while non-native species are those that have been introduced intentionally or unintentionally by humans outside of their natural range.
What is the definition of an alien species animal?
The term "alien species animal" is not an accurate categorization in scientific literature or conservation terminology. In ecology and biology, the concept of alien species typically refers to non-native organisms introduced to an area outside of their original distribution and can cause ecological or environmental harm. These are often referred to as non-native or invasive species.