Red-eared slider (Trachemys scripta elegans) is a semi-aquatic turtle belonging to the family Emydidae. It is a subspecies of pond slider. It is a native of the southern United States, but has become common in various areas of the world due to the pet trade. They are popular pets in the United States, Mexico, the Netherlands, Canada, Spain, Japan, Malaysia and the United Kingdom. A native from the United States, the red-eared slider turtle has been nominated among 100 of the world´s worst invaders by the World Conservation Union and is considered a major threat to biodiversity. The turtle is very aggressive and will out-compete native species for food and space in our waterways.