Entomologists studying ticks and the disease pathogens they carry must also become adept at handling the host animals that ticks feed on, such as mice. A new article in the open-access Journal of Insect Science offers a guide to do just that, part of a new special collection on protocols in medical and veterinary entomology. Shown here is a mouse from which ear-tissue samples have been taken, which can later be tested for infection by the bacteria that cause Lyme disease or other pathogens. (Photo by Taylor Miller)