Wanting desperately to be a parent is a heart-wrenching emotion--and for animals, it's no different.
Take Koko, a gorilla from California. Known for being remarkably fluent in a modified version of American Sign Language, Koko loves babies, often signing the word "baby" and playing with gorilla dolls in her arms as if they were her real children.
So for her 44th birthday, Koko's trainer Francine Patterson decided to surprise her with a litter of kittens. Watch as sweet Koko gently plays with the tiny babies, cuddling them and loving them as if they were her own--which, as you'll see in this video, a few soon would be.
All together now: Aww!