"pursuit of anything in ignorance of the direction it will take," hence "a foolish enterprise," 1592, first attested in "Romeo and Juliet," where it evidently is a figurative use of an earlier (but unrecorded) literal sense in reference to a kind of follow-the-leader steeplechase, perhaps from one of the "crazy, silly" senses in goose (n.). Wild goose (as opposed to a domesticated one) is attested in late Old English (wilde gos).
The battle front in Europe is not the only American front. There is a home front, and our people at home should be as patriotic as our men in uniform in foreign lands. [promotion for the Fourth Liberty Loan appearing in U.S. magazines, fall 1918]
Homo as the genus of the human race, within the order Primates, was formally instituted in Modern Latin 1758 by Linnaeus (originally also including chimpanzees). Used since in various Latin or pseudo-Latin combinations intended to emphasize some aspect of humanity, as in Henri Bergson's Homo faber "man the tool-maker" (in "L'Evolution Créatrice", 1907).