The Bactrian camel and the dromedary often interbreed to produce fertile offspring. The dromedary and the Bactrian camel often interbreed to produce fertile offspring. An exhibit with dromedary camels is just past the sheep farm. The dromedary is the tallest of the three camel species. It has two humps on its back, in contrast to the single-humped dromedary camel. It also has a large population of the dromedary camel. A full-grown adult dromedary camel stands at the shoulder and at the hump. They also meet the Doubtful Dromedary and the Comfortable Camel. The testicles of a dromedary camel are long, deep and in width. The camel posed willingly, but Old Joe, the dromedary, wouldn't hold still. The dromedary has 74 diploid chromosomes, the same as other camelids. The strength and docility of the dromedary make it popular as a domesticated animal. A study found bovine calf rennet could be used to coagulate dromedary milk. This area was also the first region to domesticate the dromedary. Like the horse, the dromedary has no gall bladder.