My wife read about an endangered butterfly called the Small Blue. The female feeds exclusively on a plant called kidney vetch. Isn't that crazy? One fucking pla

My wife read about an endangered butterfly called the Small Blue. The female feeds exclusively on a plant called kidney vetch. Isn't that crazy? One fucking plant! This isn't a plant that you can buy in a garden center. That's the magic about ecosystems. They develop over aeons, and have intricate interdependencies. Many species are extremely picky about how they mate, where they lay their eggs, what they eat when they're larva, what they eat as adults etc. If you wipe out a single plant, you could wipe out an insect that exclusively feeds on it, which could wipe out some other thing that feeds exclusively on that insect. If an invasive species that threatens a single native species, this isn't just "something we don't like", it can cause a chain reaction of extinctions.