Stashed in: gifs, Stairway to Heaven!, Jump!, It's Always Sunny in Philadelphia, Tuxedo Cats!
Right side up:
Source is Ninja Cat climbs stairs:
Flip flip Flipadelphia!
Cat with mouthful of grass... And... Mouse.
This Is How Ducks Slide gif
You were good kid, real good. ~The Mask Smokin gif
What I imagine happens during fertilization...