You might not think of insects when you think about animal communication, but as groups and individuals, they have purposes in our world and feelings, too. (If you want to read about one conversation I had with a very urban fly, check out pages 69-70 in Dawn Baumann Brunke's Animal Voices, Animal Guides, a wonderful book about about animal communication and how to try it yourself.)
Bees, for example, play an extremely important part in our environment and lives. Most people know that bees make honey and pollinate flowers, but they may not realize that pollination is what allows many fruits and vegetables to grow. Without bees, the world's food supply would be in big trouble.
However, you may have heard over the last few years that many bees have been suffering from a syndrome called colony collapse disorder. According to the Natural Resource Defense Council, researchers believe that over a third of all bee colonies in the United States alone may have fallen to this disorder, wherein bees die off or disappear en masse. In fact, the problem has possibly affected billions of bees worldwide.