perhaps due to the fact that both male and female Jacob sheep can grow horns (typically two to four horns, though occasionally they can grow up to six)! According to Livestock Conservancy ...

Ancient sheep buried in an elite grave in Egypt show the oldest evidence of humans deliberately deforming the horns of livestock. Exactly why it was done remains a mystery. In the 5,700-year-old ...

Archaeologists uncovered the oldest known evidence of humans deliberately modifying the horns of domesticated animals. The ...