In a remote or fragile ecosystem, the introduction of a foreign species of living organisms can cause immense ecological damage. This occurs because the invasive/foreign species has little to no opposition, thriving and expanding their population. This in turn can displace an indigenous species, or in extreme cases, locally extinct a species. How do this species find their way to these new environments? In this site we'll be taking a deeper look into three examples of invasive species. The cane toad in Australia, the brown tree snake in Guam and the feral green iguanas in Florida.