Yosemite National Park's approximately 90 mammal species, and their behaviors, are truly fascinating for park visitors to observe safely and responsibly. Seventeen mammals have a special status by either the federal or California state governments due to declining population numbers or to a lack of information about their numbers and distribution. Ongoing research has put a magnifying lens on several mammal species within the park and continues to build on work in the 1920s by famous mammal researcher Joseph Grinnell.
American black bears found in Yosemite have long been of intense interest to park visitors and managers.
Sierra Nevada Red Fox
A photo of a red fox padding atop a crest of snow in the far northern wilderness of Yosemite was proof that this creature is still alive.
Last updated: February 13, 2017