closeup of a mule, offspring of a male donkey and female horse used for carrying loads

mammal animal wildlife head nose mane bovine horse horn cattle eye zoo stallion pasture snout closeup mule offspring male donkey female used carrying loads beak beauty brown cute feline fur hair meadow nature outdoors portrait safari zoology animals background beautiful cat colorful domestic eyelashes eyes face macro natural outdoor pet texture wild young horse horses donkeys species numbers chromosomes two first-generation hybrids easier hinny