LDS periodical says "human race" was "almost exterminated" at the Flood.
"Christianity Amongst the Jews," The Latter-day Saints' Millennial Star 28, no. 43 (October 27, 1866): 678
But the Jews are also by their practice in worship, witnesses for God against idolatry—and not the idolatry of the heathen world only, but the idolatry of Christendom; for marvellous it is, and a standing proof of the utter ruin of mankind—after the deluge had done its work, and the human race had been almost exterminated, the human character was not reclaimed.