Add Yahoo as a preferred source to see more of our stories on Google. Only very few bees will nest inside a cavity that is less than 5 centimetres deep. Patrick Pleul/dpa-Zentralbild/dpa Bug hotels ...

As a kid, watching insects in my backyard helped me develop a deep curiosity and appreciation for the intricacies of nature. Today, I still love being a voyeur in their world. But the helpful insects ...