Previously (as of last week 1/24/2007), the known laws of aerodynamics could not explain why bumble bees and other small insects (and even some birds) could fly. A common answer to the Bumble Bee Paradox was “Well, it’s just determined”.
Today the answer is solved. Bumble Bees can fly because the front of the wings are rigid and the backs are flexible. This means that bee’s flapping wing causes a vortex, a mass of spinning air. This vortex the produces lift (as seen in the video below).
Previously, science deemed that flying dragons could never have existed as well because they would have been just too big. Well, maybe this gives the inner-nerd in all of us hope!