If ailerons are so great then why don't birds have them?

Heh, how about,"If the wheel is so great then why don't cheetahs have
them?" Or how's this, "If hydraulic pistons are so great then why don't
elephants have them?"



--
http://www.ernest.isa-geek.org/
"Ignorance is mankinds normal state,
alleviated by information and experience."
Veeduber