A hummingbird can beat its wings at 50 beats per second, which is so fast that it looks like a buzzing blur in the air. Hummingbirds are also able to zoom up to a flower at 40 kilometres per hour (24 miles per hour) and stop in an instant.
Cockroaches go with the wind
Cockroaches go with the wind Scientists believe that they have discovered why
cockroaches appear to be indestructible. Tiny hairs on their back
ends warn them of approaching danger through moving air currents
and tell them when to run. 15 JUNE 2000
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