Don't go thinking that flying is for the birds because some animals can fly even though they don't have wings! To find out how, we're counting down the top ten freakiest fliers in the animal world and see just which one of these wingless wonders travels the farthest. From extended ribs to balloons of silk, we'll meet up with some animals that can glide through the air with the greatest of ease when freaky flying is taken to the Most Extreme.
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