The seemingly peaceful atmosphere in an organic garden on the University of Florida campus belies the battles happening among many of its tiniest inhabitants: the insects. For entomologist Christine Miller, there are endless opportunities here to study how insects compete and even fight for a mate. With support from the National Science Foundation, Miller and her team are researching mate selection and animal weapons as a key to better understanding animal behavior, diversity, and evolution. Understanding evolution is essential for figuring out solutions to modern problems such as antibiotic resistance, a major problem in medicine, and for understanding how life on the planet became so diverse and how it may change in the future. Part of the National Science Foundation Series “Science Nation.”