Occurring in a given place as a result of direct or indirect, deliberate or accidental actions by humans.
Some exotic species look very attractive but, like con artists, can cause serious harm.
An exotic species innocuous adj. Not a threat to native species or ecoystems invasive adj. Common language term meaning tending to spread, intrude, or encroach, usually aggressively and in a hurtful manner. Official term for an exotic species whose introduction can cause economic or environmental harm or harm to human health. The term originated in Presidential Executive Order 13112 issued February 3, 1999.