I adopted a then-8-week-old kitten less than two months ago, and it's been an eye-opening delight watching him adapt just to things in my home.

During his first week he managed to hop onto a window sill, and then fell off when he tried to turn around to walk along it the other way. Less than a couple weeks later he was effortlessly walking along the edge of a pillow stood on its side, a much narrower, unstable surface.

It's amazing to me that a tiny creature like that can learn to adapt in that way with so few days of life under his belt.