U.K. researcher Helen Roy, Ph.D., helps a student learn about ladybird beetles (known as lady bugs or lady beetles in the U.S.) at a science festival in Moscow. Roy has been interested in ladybirds herself since she was 6 years old, and she now studies them as an ecological entomologist at the Centre for Ecology & Hydrology in Wallingford, England. (Photo credit: Helen Roy, Ph.D.)