📸 *Photo of the Day* Rare "blonde" penguin spotted in Antarctica. This is an "isabelline" or "leucistic" Adélie penguin. It looks washed out or like it as bleached due to a genetic mutation. Unlike albinism, which occurs when a person or animal’s body produces no melanin, or pigment, leucism happens when those pigments are prevented from being distributed to all the body parts. _Photo: National Geographic_