Pups of the prairie © John E Marriott/age fotostock
These swift fox pups make their home in Grasslands National Park in Saskatchewan, Canada. Historically, the range of this cat-sized fox stretched across the short grass prairies of Canada down through the central US to the Texas Panhandle. But as agriculture and settlements overtook open grasslands, swift fox numbers declined precipitously. By the 1930s, they had completely disappeared from the wild in Canada.