We've seen gorillas be aggressive and then at the same time so gentle with kittens. They are so much like humans, from facial expressions to mannerisms. They also have the same curiosity a child would have seeing something for the very first time. Watch these two gorillas fight over who gets to be closest to the caterpillar.

I'm sure this provided countless hours of fun for the gorillas although only a small snippet is provided in this video. They never touch or bother the tiny bug, they just watch him crawl around on their bars. Then they go back to their business.