简介：Hummingbirdstakeextraordinarytoawholenewlevel.Theyarethesmallestwarm-bloodedcreaturesontheplanet,buttheyarealsoamongthefastest.Withwingsthatbeatupto200timeseverysecond,theyareamongnature’smostaccomplishedathletes,theonlybirdsabletohover,flybackwards,andevenupsidedown.Hummingbirdmetabolismsaresetinpermanentoverdrive,requiringthemtoconsumemorethanhalftheirbodyweightinnectareveryday,yetevenso,theyremaininconstantthreatofstarvingtodeathastheysleep.Tosurvivethenight,theyfluffuptheirfeathersandadjusttheirthermostats,decreasingtheirbodytemperaturesbyhalfandreducingtheirheartratefrom600beatsperminutetoamere36.　　Becausehummingbirdslivetheirlivesinfastforward,muchoftheirfascinatingworldistypicallylosttohumanperception.Butusingcamerasabletocaptureover500imagesasecond,thehummingbirds’magicalworldcanfinallybeseenandappreciated.Amazingfootageshowstheselittlepowerhousesarefarmorethandelicatenectargatherers—theyarealsodeadlypredators.Andwatchasthebirdsdisplaytheirelaboratematingrituals,showingoffwithnosedivesthatsubjectthemtoovertenG’sofforce—enoughtocauseanexperiencedfighterpilottoblackout!　　Thesetinymarvelsdazzleanddelightbirdwatchersallovertheworld,andNATURErevealstheirstunningabilitiesastheyhaveneverbeenseenbefore.…