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Building a Heart

Building a Heart

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1:53
Grow

Grow

Season 1 Episode 1
54:40
Survive

Survive

Season 1 Episode 2
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Learn

Season 1 Episode 3
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Episode 5: The Calling

The Calling

Season 4 Episode 5
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When Whales Could Walk

When Whales Could Walk

Season 51 Episode 1
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The Amazing Human Body

When Puberty Starts

What determines when we start puberty has until recently been a mystery.

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Learn
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54:40
See how experience teaches the brain and body to work together and develop new skills.
Survive
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54:40
Discover the miraculous ways the human body works to stay alive and healthy.
Grow
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54:40
Learn how humans grow from a single cell to beings of more than 37 trillion cells.
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