Hybrid (biology) are the mule, a cross between a female horse and a male donkey, and the hinny, a cross between a female donkey and a male horse. Pairs of complementary types like the mule and hinny are called reciprocal hybrids. Among many other mammal crosses are hybrid camels, crosses between a bactrian camel and a dromedary. The first known instance of hybrid speciation in marine mammals was discovered in 2014. The clymene dolphin ("Stenella clymene") is a hybrid of two Atlantic species, the spinner and striped dolphins. Cagebird breeders sometimes breed bird hybrids known as mules between species of finch, such
When a white horse is not a horse term" and "shi" "solid; true, actual; fact, reality", and abstract "zhi" "finger; pointing; designation; universal" like "whiteness" and concrete "wu" "thing; object; particular" like a "white horse". The Chinese of "a white horse is not a horse" is "bai ma fei ma" 白馬非馬, whose meaning hinges upon the negative "fei" "not, is not; no, negative; oppose; wrong". The Classical construction "A "fei" B" "A非B" can ambiguously mean either "A is not a member of the class B" or "A is not identical to B". Interpreting this equivocation fallacy, A.C. Graham says this "white horse" vs. "horse" paradox plays upon the