6 October 2011 Updated at 05:30
Leaping fish give evolution clue
Victoria Gill
Science reporter, BBC Nature
A zebrafish uses its body like a spring - curling up then pushing off
Related Stories
Small fish use sneaky sex tactics
Rhythm of life for blind fish
Human clues to our fish ancestry
Unlikely looking aerobatics performed by fish have given researchers an insight into how aquatic animals evolved to live on land.
link-
http://www.bbc.co.uk/nature/15187545