Why Do Penguins Wear Tuxedos?
10,000 Birds
SEPTEMBER 15, 2011
They have special adaptations to stay warm and to keep their eggs and chicks warm. One is that the circumstances for a trait to emerge do not automatically cause it to happen, and by chance Penguins never underwent this particular Darwinian process until much later in their history. Salas-Gismondi, R., Altamirano, A., Shawkey, M.,
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