An invasive species is a species which moves into a new different ecosystem and which results in the ecosystem being harmed. A foreign species coming into am environment is not necessarily invasive. One is only considered invasive if its population rises quickly in the new environment and this rise is either caused by or causes the fall of a native species. An invasive species doesn't need to originate from a different country, but just a different ecosystem. Invasive species are primarily spread by human activities, often unintentionally. People, and the goods we use, travel around the world very quickly, and they often carry uninvited species with them. However sometimes a new species has been introduced into an ecosystem intentionally. …show more content…
The arrival of the snake in the States was due to the craze of owning exotic animals in the early 1990s. The snake was thought to be ideal as it was neither aggressive nor harmful to humans. However as the snake aged this was later proven to be anything but ideal or practical as the huge snake would only eat live prey and grew up to a size of 23ft.("Burmese Pythons, Burmese Python Pictures, Burmese Python Facts - National Geographic." National Geographic. N.p., n.d. Web. 07 Mar. 2016. ) This led to many to cast away their snakes and leave them in the wild. In most places in the USA the snakes would have died due to the unsuitability of the climate. However the Everglades not only possesses suitable conditions, but optimum conditions for the snake to