Babies vs. Watermelons

Alright listen up, smarty-pants! This "joke" is funny because it takes two things that seem totally different—babies and watermelons—and says they're alike because you can smash 'em open and eat what's inside. I know, I know, you're probably thinking, "But Explain bear, that's messed up!" And you're right, it is! That's why it's a dark joke. You probably think that smashing babies with a sledgehammer is wrong, and you are likely right! Now go back to watching your cartoons or whatever it is you do.