.About the Documentary:
"As the early June sun begins to set over a calm river in Central Hungary, masses of ghostly shapes emerge from their
larval cases to take to the air for the first time. They are mayflies and in a spectacular display, thousands of them
demonstrate how the very first wings were used.

From the stunning aerobatics of hoverflies in an English garden to the mass migration of purple crow butterflies in
the valleys of Taiwan, this episode tells the tale of the first animals ever to take to the air. Unique footage
reveals the lightning fast reactions of bluebottles and hoverflies, filmed with one of the world's fastest cameras,
and David Attenborough handles the world's largest (and perhaps most ferocious) insect - the Titan beetle."
Source: http://www.bbc.co.uk/sn/tvradio/programmes/lifeintheundergrowth/prog_sum...