In one work, a wife is forced to copulate with one of these animals after poisoning her husband and killing her sister. In that work, that one of these animals eats a crown of roses in order to turn back into a human. (-5[1])The story of Psyche and Cupid originates from that novel, which is titled for one of these animals (10[1])and is the only entirely surviving Latin novel from (-5[1])antiquity. In one Aesop fable, one of these animals falls into a river when a miller and his son (10[1])try carrying it to market. (10[1])The novel Metamorphoses, (10[1])by Apuleius, concerns a man who is turned into a golden specimen of this animal. For 10 points, name this stereotypically stubborn (-5[1])beast of burden. (10[1])■END■ (10[3]0[1])