Some five centuries ago, a major revolution overturned traditional ship designs. In just a few years, ships were transformed from small coastal-bound transports into massive ocean-going vessels capable of long-distance exploration. These designs were crucial to launching Europe's age of imperial expansion and colonial exploitation, toppling the indigenous civilizations of the New World and spreading pandemics.

Episodes include: Dog genius; Creative dolphins; Octopus & cuttlefish; and Profile - Irene Pepperberg and her talking parrot, Alex.