Actually, a penguin's leg is not much different from our own. They have a femur, a tibia, a fibula, and (of course) knees. Penguins also actually have much longer legs than they appear too.

PITTSBURGH (AP) — Pittsburgh Penguins center Evgeni Malkin has had surgery on his right knee and will not be available when the team reports for training camp in September. The team made the ...

1. Penguins Have Knees They may be hard to see, but underneath all the those feathers are a bony set of knees. This hidden body part helps the birds glide through the water and belly-slide on land. 2.