And should it be destroyed? It looks like it might be a caterpillar nest, but I've never seen anything like this and frankly it creeps me out. It's right in my backyard, mocking me with it's strange existence The photos don't do it justice, it's actually kind of large -- about as long as my forearm. Thanks. I'd like to destroy it but I don't want to throw off some eco-balance thing if it's important.