Sean Silverstein Posted almost 2 years ago Are you concerned about the spread of invasive species? Clinton brings up a great point, that since we have become the dominant species of the planet, we have brought with us an unprecedented level of extinction. I agree with Rishi, that it is not that different from the extinction of many species, such as the mammoth and sabre tooth tiger, but that will soon include us if we are not careful. The distinction needs to be made when dealing with human-induced invasion. The Zebra Mussels will cause a change in the aquatic environment, as they have for the Great Lakes and associated rivers, which on its own (without putting human needs on the table) is not good or bad for the environment. The effect on the human environment, however, is potentially devastating. Since we are attempting to prolong our existence as a species indefinitely, we must understand that invasions like this one work against that.