Eons (2017)
S4E9 When Penguins Went From The Sky To The Sea
Episode Overview
Nowadays, we picture penguins as petite, waddling birds in tuxedos. However, their lineage traces back to ancestors that could fly, and for millions of years, they included some massive species. Interestingly, some of these ancient penguins sported a more relaxed style than what we see today.
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S4