The magazine Science News reports what has been observed in bats: “When flying at slow speeds, about 1.5 meters per second, the bats turned their wingtips upside down and quickly flicked them backward during an upstroke.
Ajakiri „Science News ” annab teada, mida on pandud tähele nahkhiirte puhul:„ Kui nahkhiired lendasid aeglaselt ehk umbes 1,5 meetrit sekundis, siis pöörasid nad oma tiivaotsad allapoole ning üleslöögi ajal kiiresti tahapoole.