From an AP story headlined “San Diego Zoo penguin fitted with orthopedic footwear”:

A member of the San Diego Zoo’s African penguin colony has been fitted with orthopedic footwear to help it deal with a degenerative foot condition.

The 4-year-old penguin named Lucas has lesions on his feet due to a chronic condition known as bumblefoot, which covers a range of avian foot problems, the San Diego Wildlife Alliance said Monday in a press release.

If left untreated, bumblefoot could lead to sepsis and death by infection.