A conservation group has bought out one of Ignacio rancher J. Paul Brown’s grazing allotments in the Weminuche Wilderness to reduce the risk his sheep pose to native bighorns, but critics say the ...

Darker sheep are bigger, but now we learn why they’re not better. Soay sheep living wild on the Scottish island of Hirta come in two colors: light brown and dark brown. Researchers have known that the ...