Skydivers rely on parachutes to slow them down as they fall from frightening heights.
Butterflies move their scaly wings in a figure-eight pattern, cutting and swirling the air, to take flight.
Skydivers rely on parachutes to slow them down as they fall from frightening heights.
Butterflies move their scaly wings in a figure-eight pattern, cutting and swirling the air, to take flight.