 Pat in Middletown. Do penguins have knees? I know nuns do. What? They look the same. Do penguins have knees? I'm sorry. Do penguins have knees? They walk very stiff-legged. I'm going to say no. They can jump, though. They waddle. They can definitely have knees. Yeah, but they're going, oh, one, and two, and off they go. I'm going to say no. No knees. I think yes.