Usually we breed organisms for weekness. Many of our farm animals and plants wouldnt survive without our protection. Also mutations, often have to overcome obs

Usually we breed organisms for weekness. Many of our farm animals and plants wouldnt survive without our protection. Also mutations, often have to overcome obsticles to conquer a new niche. They have to reach a specific habitat or deploy seeds at a distribution system (cars driving dirt roads e.g.). Lets take a nice little SciFi Example- NASA breeds in its lab a terraformer for venus, a sort of airborn spirondella. This could potentially wipeout all live below, by covering a planet with green "living" clouds. Now this organism could escape the lab, bot as long as it does not reach a warm, wet climate it is dormant. So even if this dangerous organism was out there- it could potentially deteriorate before it reaches the equatorial belt and starts to bloom. Nothing is certain in nature, but one thing- if its a success - it trys to be a exponential success.