How Penguins Lost Their Flight
A new theory might explain how penguins lost their ability to fly. The theory says birds can’t have wings good at both flying and swimming, and penguins made the tradeoff.
A new theory might explain how penguins lost their ability to fly. The theory says birds can’t have wings good at both flying and swimming, and penguins made the tradeoff.
A flock of penguins at a Japanese aquarium replace Santa’s elves as they bring holiday cheer to Hakkeijima Sea Paradise in Tokyo. Matt Blake from ITN reports.