We think we are very clever, that science has conquered nature and that we are generally invincible. Far from it. We are certainly growing in knowledge and power at an amazing pace, but we are totally dependent on the ecosystem of which we are a part. We have killed off many other species. This may have unintended consequences that could threaten our own survival. We should make sure that all other species thrive and all ecosystems maintain their biodiversity. If we destroy our home, we will be in trouble because we haven’t yet found anywhere else to live.