Today, we know that introducing a foreign species into a habitat, no matter how benign it seems to be, is a really bad idea. The Bradford pear is one prime example of this. The small and decorative tree was a staple of the thousands of new subdivisions that sprung up across the country between the …
![](https://insanitek.net/wp-content/uploads/2018/10/Pyrus_calleryana-1024x891.jpg)