Calvin and Hobbes by Bill Watterson for June 29, 1990
Calvin: There's a Diplodocus! We're in the Jurassic! We made it! Hobbes: Ugh. I can't believe you wanted to come back here. Calvin: Last time we didn't bring a camera. All we need is a few good dinosaur photos and we'll be rich when we get home. Hobbes: If we get in National Geographic, maybe I'll get to meet some of those Tigress babes they showed in the April issue! Yow wow! Calvin: Those were females? Really, I don't know how you can even tell the difference.