Twirl is a rat within a training colony at a research facility. Her job is to help researchers become comfortable around rats and to ensure that they have the skills to humanely handle rats. Twirl's teacher spends time with her regularly to strengthen the human-animal bond making Twirl's…
Guinea pigs are an excellent model for studying human hearing mechanisms because of the similarities in both outer and inner ear structures. They are especially valuable in cochlear implant research because their cochleae are easily accessible and large enough to implant multiple commercially-available electrodes to aid in gathering…
We want to continually grow our website’s inventory of pictures and true stories of the groundbreaking research that saves lives. We invite you to share your knowledge of the animals that are integral to medical progress and become part of CSOW by submitting your images, videos, and stories…
Pigs are smart, social animals that like to nibble and root. Balls and puzzle toys are provided to engage them in rooting and problem solving opportunities. These caregivers know each of their pigs by name and look forward to spending time with them every day.
Cats like Sophie help researchers study the molecular causes for heart failure. Almost 6 million people in the US have heart failure and half of these people die within 5 years of their diagnosis. Cells from the heart muscle of cats survive for up to 10 days in…
A rhesus macaque mom climbs into a hammock with her infant at the Wisconsin National Primate Research Center. Females reach puberty at around age three, while males are sexually mature by age four. Gestation is five and a half months, with one infant born at a time and often a…
Researchers view a marmoset’s MRI as part of an aging study to explore links between energy metabolism and neural function. Diseases related to aging are serious concerns for the world's rapidly expanding population of older adults. Some of these include: Type 2 diabetes, many cancers, Alzheimer's, Parkinson's, obesity,…
This monkey is part of a family of common marmosets in the lobby of the Wisconsin National Primate Research Center. Adult common marmosets like this one weigh about 9 ounces. Marmosets are often referred to as "squirrel sized monkeys." Babies are born the size of an adult human's…
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