Ass is a single hoofed mammal of the genus Equus, related to the horses. They typically have a smaller build and longer ears.
Ass is the correct term used for a donkey, burro, or jackstock.
Burro is the Spanish term used for donkey (generally used west of the Mississippi).
A hinny is a hybrid animal that is produced when a female ass (jennet) is crossed with a male horse (stallion).
Horse hinny is the proper term for a male hinny over three years of age.
Horse mule is the proper term for a male mule over 3 years of age.
Jack is a male ass.(Note – young jacks are not referred to as colts).
Jackstock is the plural referring to American Mammoth jacks and jennets.These animals are properly termed asses and are not referred to as donkeys, and never called burros.
Jennet or jenny is a female ass.(Note – a young jennet or jenny is not referred to as a filly).
Jennet jack a male ass used to produce donkeys.
John is an informal term for a male mule.
Mule is a hybrid animal that is produced when a male ass (jack) is crossed with a female horse (mare).
Mule colts (males) and mule fillies (females) are young mules under 3 years of age.
Mule jack is a male ass used to produce mules.
Mare hinny is the proper term for a female hinny over three years of age.
Mare mule is the proper term for a female mule over three years of ago.
Molly is an informal term for a female mule.
mule: [mjuːl]骡子。
ass： [æs]驴
burro: [ˈbʊrəʊ]小驴。
hinny: [‘hɪnɪ] 驴骡；公马和母驴所生的骡子;
colt: [kəʊlt] (四或五岁以下的)雄马驹;
filly: [ˈfɪli] 雌马; 小牝马;
mare: [meə(r)]母马; 母驴;
jennet: [‘dʒenɪt] 母驴; 西班牙小马;
jenny:
stallion: [ˈstæliən] 牡马; (尤指)种马;
mule jack: 公驴; 尤指种驴