The time we’ve all been anticipating for years has finally arrived; Osh has now experienced his first musth. Bull elephants, both African and Asian, go through a period of heightened sexual and aggressive activity, or musth. Similar to that of a rut in hoofstock species, this is a period when bull elephants more actively compete for, seek out, and guard estrous females. Musth was first described in African Elephants in 1976 by elephant expert Joyce Poole and is characterized physically by stinky temporal
drainage and swollen temporal glands, urine dribbling from the sheath, along with several specific distinct displays of behavior as well as heightened aggression toward other bulls. When a young bull goes into his first musth it generally only lasts for a few days or weeks as they come in and out of it. Bulls typically go into their first musth from the years of 18-25. At 18 years, standing at 10 feet 3 inches tall, and weighing in at 11,300 lbs, Osh seems to be experiencing similar patterns to that of the wild. Although catching the eye of the females will be much easier for him, since he won’t have any competition. Older males with more experience can go into musth for up to several months, with the most successful breeding males in their forties. Females prefer musth males to non-musth males, although those not in musth may also breed successfully. About a week prior to being official we noticed an increased amount of temporal drainage from Osh’s temporal glands. We continued to observe heavy temporal drainage with a specific musky odor, which was followed by a wet sheath and a small amount of urine dribbling. Throughout the next two weeks we continued to observe these physical changes, sometimes the urine dribbling heavier, completely wetting down the insides of Osh’s legs. These are physical changes you can look for if you see him on exhibit. As of yet, we have not noted any dramatic behavioral changes which may change as time goes on. This is a very interesting time for the elephants as well as the keepers as we witness Osh go through a new chapter in his life.