What A Trip 1:
Some spiders will shoot off a long silken thread from whatever they're sitting on (like a tree), then let a breeze catch them, and they float along in the air like a kite with a tail (also called "flying spiders"). Some spiders have been found high up in the atmosphere by hot air balloonists. This is one of those factoids that boggles my mind.
What A Trip 2:
(Via The Zero Boss)
And in case you're wondering if the makers of the above movie pulled it out of their ass (much like a spider does), not exactly.