Recent work suggests that availability and quality of forage in late summer and early autumn, a time when female ungulates face multiple energetic demands, is critical to reproduction in wild ...

BISMARCK, N.D. (AP) — Reproduction of mule deer in North Dakota is at record-low levels for a second year in a row, and a state biologist said another mild winter is needed to help the animals rebound ...

A team of United States scientists has made the genetically sterile animal, the mule, reproduce. Mules are created by breeding a mare with a donkey and due to a chromosome mismatch, they are generally ...

Scientists in Idaho have produced the world's first cloned mule. So far, the mule, born May 4, is the only member of the horse family to be successfully cloned. The project took almost five years and ...

U.S. scientists have cloned a mule -- an animal which cannot reproduce because it is a sterile cross between a horse and a donkey. While the immediate application should be mule clones competing in ...

SEATTLE -- Three young mules who are the first members of the horse family to be cloned are all healthy, normal and energetically enjoying life, say researchers who put them on display here Sunday.

Mule deer move across a sagebrush-covered basin in western Wyoming, where new research by UW scientists challenges the long-held assumption that animals match offspring birth with the peak green-up of ...

Scientists now challenge the long-held assumption that animals match offspring birth with the peak green-up of forage at the birth site. A five-year study of mule deer does and newborn fawns in ...