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 ...

Chad Dechow, a geneticist at Pennsylvania State University who studies dairy cows, is explaining how all of America's cows ended up so similar to each other. He brings up a website on his computer.

Elk are the second largest animals in the deer family. Fully grown male elk, or bulls, average about five feet tall at the shoulders and can weigh as much as 1,100 pounds. Their antlers can reach five ...