When penguins court potential mates, they often present stones as gifts, which are then used to fortify the nest.

BRITANNICA.COM

8 Birds That Can’t Fly

Have you ever wished you were an eagle, soaring high above the prairie? How about the mythical phoenix, rising from the ashes? For centuries people have wistfully watched birds take wing and felt a bit jealous. But what about birds that don’t fly? You’d think they’d hold a grudge against their