For a female muskox at the Port Defiance Zoo in ... head butting is a natural part of musk ox behavior, just like with rams and sheep, and they usually ply their skills against much harder ...

Amelia said that their longest living residents, a male named Littleman, died at 25 years of age, and a female named Georgeann, was 28. At one stop, a musk ox walked up to the fence next to our group ...