Bighorn males, called rams ... rugged mountain terrain. Wild sheep live in social groups, but rams and ewes typically meet only to mate. Rams live in bachelor groups and females live in herds ...

Some scientists have postulated that Pachycephalosaurus's padded skull allowed these animals to engage in head-butting battles of dominance perhaps related to mating, much like bighorn sheep and ...

John Lewton said he was told the testicles were meant to preserve bighorn sheep herds, not create giant hybrids for captive ...

Bighorn sheep get their name from the large horns atop their head, which curve backwards toward the sheep's body. They can weigh between 140-300 pounds and average about 3–3½ feet tall ...