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Bill’s in the swim with the “Animal Locomotion” episode.

Bill Nye gives you the furry facts about mammals.

Bill Nye the Science Guy is back to talk about invertebrates.

The Marine Mammals episode is smooth; it’s like blubber.

Part 1: The Conquerors: For hundreds of millions of years, animal life resided only in the oceans. And then, in one extraordinary event, something happened that enabled one group of animals to emerge from the sea. Follow scientists as they track how the shape of life transformed to create the animals that led the first successful land invasion and were the first to pioneer flight.

The Shape of Life tells the gripping and magnificent tale of the beginnings of all animal life.