Penguins are fascinating birds that have evolved for a life primarily in the water, which has led to some unique anatomical adaptations. Do penguins have knees? When it comes to their legs, penguins do indeed have knees, but they are not externally visible like in humans or many other animals. Penguin knees are located inside their bodies, hidden beneath their feathers and skin.

Penguin legs are short and stout, with the joint that corresponds to the human knee situated closer to the body's core. This adaptation helps streamline their bodies for efficient swimming, as external knees would create unnecessary drag. So, while they do have knees, you won't see them on the outside of a penguin's body.