A fisher is a medium-sized mammal belonging to the weasel family, known scientifically as Pekania pennanti. They are primarily found in North America and are recognized for their dark brown fur, bushy tails, and agile bodies. Fishers are skilled climbers and often hunt in forests, where they prey on small mammals, birds, and even porcupines. Fishers are solitary animals and are most active during dawn and dusk. They play an important role in their ecosystem by helping to control populations of their prey. Despite their name, fishers do not primarily eat fish; instead, they are opportunistic feeders that adapt their diet based on available food sources.