Horses and donkeys are different species, with different numbers of chromosomes. Of the two F1 hybrids between these two species, a mule is easier to obtain than a hinny, which is the product of a female donkey (jenny) and a male horse (stallion).The size of a mule and work to which it is put depend largely on the breeding of the mule's dam (female parent). male mule is properly called a horse mule, though often called a john mule. A female mule is properly called a mare mule, though often called a Molly mule. A young male mule is called a mule colt, and a young female is called a mule filly.
A fungal infection is at the root of toenails turning yellow. This infection is called onychomycosis, which generally starts at a nail's corner and spreads across the cuticle. It affects two toes most often: the big toe and the pinky toe.
The look of the nail. If your nail is: thick, yellow, brown, spongy to cut and contains in appearance moth eaten nail then more than likely you have a toenail fungus. But if you have just a thickened toenail and is hard, then it is unlikely a toe nail fungus is present. If you dropped something onto that toe or damaged it in the first place then you probably have a thickened toenail because of trauma to the nail bed which causes the thickening. It is called Onychauxis (ony-cox-is).