Do 4 legged animals that run (dogs, horses, cheetahs, etc.) learn to offset their back legs from their front legs (and thus run slightly sideways) or are they born doing that? - Quora
Why Do Some Animals Walk on Their Hind Legs?
Four-legged Walk Basics | Toon Boom Learn
Quadrupedalism - Wikipedia
Animation for Beginners: How to Animate a Four-Legged Animal Walking
Virtual resurrection shows that early four-legged animal couldn't walk very well | Discover Magazine
4 legged cute animal references?
Mammal's Locomotion-3rd version
I like the way you move: from a walk through a trot to a gallop, on four legs | Aeon Videos