Video: In the Womb: Extreme Animals

For Mother’s Day tomorrow, the National Geographic Channel has a fascinating show in the works, titled In The Womb: Extreme Animals, exploring the reproduction of four different animals with real-time 4D ultrasound images. Here’s a video clip of the section dealing with a penguin fetus and its extraordinary method of getting oxygen from its eggshell:   (You'll need to go  to Little Green Footballs to view the video.)

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