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
Donkey walk debuted the tradition on Palm Sunday 2014 with the civil and Orthodox leaders of the city in the leading roles. Donkey walk The donkey walk () is a Russian Orthodox Palm Sunday ritual re-enactment of Jesus Christ's entry into Jerusalem. The best known historical donkey walk was practised in Moscow from 1558 until 1693. The Metropolitan and later Patriarch of Moscow, representing Jesus Christ, rode on a "donkey" (actually a horse{insufficient citation}), while the Tsar of Russia humbly led the donkey on foot. From 1561 to 1655 the donkey walk began in the Kremlin and terminated at Trinity Cathedral (now