'A bee does it about 200 times a second; a mosquito, 500 times a second'
Beat its wings
NATURE: A bee does it about 200 times a second; a mosquito, 500 times a second
A bee does it about 200 times a second; a mosquito, 500 times a second
A bee does it about 200 times a second; a mosquito, 500 times a second
NATURE
Beat its wings
NATURE