"The Spanish explorer Juan Ponce de León was killed after being struck by an arrow poisoned with manchineel sap. A present-day Spanish name is manzanilla de la muerte, "little apple of death". This refers to the fact that manchineel is one of the most toxic trees in the world."
"By the 1970's the black footed ferret was declared extinct, only for a dog to bring one home to its owners in 1981 in Wyoming, allowing conservationists to find the last remaining popualtion."
ducks also have been considered fish (by the catholics) some time ago