When Did Penguins Become Flightless Birds And Why Did Penguins Evolve To Swim?
Millions of years ago penguins did in fact fly around like regular birds but they have evolved to swim instead of fly. Eventually, flying was no longer necessary. Penguins spent most of their time in the water, and did not have any predators on land that would require airborne escape. Wings for flight became flipper-like water w