Wednesday, 8 July 2009

Butterflies have four wings, which are joined to their thorax. These wings are not joined together, but they do move together when the butterfly flies. Strong muscles are located in the thorax, allowing the wings to force air up and down in a motion similar to a helicopter or an airplane propeller.
While in Flight
When butterflies are flying, their wings move in a figure-eight motion. Scientists have also found that there is what appears to be a vortex at the front edge of the butterfly's wings when they're in motion. This is a swirl of air giving the butterfly the ability to strike its wing against the air in a more forceful way than birds can.
Small Bits of Strength
An interesting fact about butterflies is that they push more air with their wings than they actually need to stay in the air. The extra push makes them flit through the air, rather than flying in a steady path like other insects. Scientist believe this extra push of air makes it more difficult for the butterflies to be seen--and therefore caught--by prey. Butterflies use the air from a previous wing stroke for their next wing stroke, much like recycling wind power.

Friday, 20 March 2009

a butterfly has diffrent kinds of wings

Tuesday, 17 March 2009

butterflys are all sorts of colours. And I want people to coment on my blog

Thursday, 22 January 2009

CATERPILLAS TURN INTO BUTTERFLYS AND THEN THEY TURN IN TO A CHRYSALIS. THE NEXT PART IS VERY EXCITING THE CATPERPILLA TURNS INTO A BEAUTYFULL BUTTERFLY
This idea will help my learning i will learn more about butterflies.

Friday, 12 December 2008