the.com/hummingbirds
Tiny feathered helicopters that solved flight, then dared gravity to try harder.
means The smallest birds on Earth, capable of hovering and flying backward while drinking flower nectar with blistering metabolisms.
from Named in the 1630s for the hum their wings make — a sound, not a song, produced by beats too fast to see.
WingbeatUp to 80 flaps per second.
Heart rateOver 1,200 beats per minute mid-flight.
Backward flightOnly birds that fly in reverse.
TorporDrop body temperature nightly to survive starvation.