For most of the year, Yellowstone’s bison appear calm and collected — grazing in herds, wallowing in dust, or blocking traffic in famous “bison jams.” But when late summer rolls around, everything ...

Unlike most dairy cows in America, which are descended from just two bulls, this cow at Pennsylvania State University has a different ancestor: She is the daughter of a bull that lived decades ago, ...

Authorities in the Cambodian capital have rounded up 15 bulls and cows after their mating habits caused traffic accidents along a busy road, a local councillor said. Officials began herding the ...