The Yosemite toad (Anaxyrus canorus) is a rare species found exclusively in California's Sierra Nevada. While its range encompasses hundreds of miles, spanning five national forests and two national parks, the livelihood and future survival of this federally threatened species may come down to mere centimeters.
According to research by the U.S. Forest Service's Pacific Southwest Research Station and its collaborators, for pools within alpine meadows to be suitable habitat for laying eggs and sustaining tadpoles, little things mean a lot.