In 1946, members of the Argentinian navy released 10 beavers to enrich the ecosystem and perhaps kick start the fur trade. Now, beavers have wrecked havoc in Argentina for decades. Unlike trees in North America, trees in South America die when beavers sink their teeth into them. Without a natural predator, they are now a hundred thousand strong. And, Argentina has declared a war on beavers
Australia faced a similar problem when 6 rabbits were introduced for hunting. Rabbits turned out to be an invasive species in Australia.
The obvious lesson here is to beware messing with the delicate balance in nature. There are two other less obvious ones.
First, small things have the ability to mess with the balance in an ecosystem. Nice organizational cultures have been destroyed by a few bad hires. Introduce one person who enjoys politicking more than doing the work and you might not notice much change. However, bring a few and it’ll soon affect the ecosystem.
On the flip side, you might also find yourself in environments where you are the invasive species. In an environment that thrives on the fact nobody asks questions, asking questions might result in the environment rejecting you.
Pay attention to the environment. Some adapt, others don’t. And, while some will work well for you, others won’t. Make sure you choose. And, once you make your choice, pay attention to the changes it undergoes. A change in your environment is sure to have an impact on your life and happiness.
A Learning a Day 
Reminds me of the Central Park squirrel story: http://nowiknow.com/the-squirrel-in-the-park/
As usual, you are able to draw relevant and meaningful insights. Thanks as always.
Ha. Interesting link. Thanks for sharing Jake!