Yellowstone Bison Gives Birth then Walks Across River with Calf
In perhaps the most definitive display of toughest mother ever, a Yellowstone bison gave birth and then promptly walked across the river with her newborn calf.
Madison River
Watch Yellowstone Squirrel and Pine Marten Play Tag Around a Tree
I have no idea why the internet is obsessed with this, but it's seriously a thing. Someone captured video of a pine marten chasing a squirrel around a tree and the net won't stop watching it.