An introduced organism that becomes overpopulated and negatively alters its new environment. Invasive species. An invasive species is a plant or animal that enters a new environment and causes harm by outcompeting native organisms.
Imagine hosting a party and inviting a friend who starts taking over the room, rearranging furniture, and drowning out conversations. This situation is similar to an invasive species because, just like that overbearing friend, an introduced organism can become overpopulated and disrupt the balance of its new environment. The connection lies in how both the friend and the invasive species upset the natural order—your friend changes the dynamics of the party, while the invasive species alters the ecosystem, both often leading to negative consequences for the original inhabitants.
