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Blood
What blood actually does and why we can't live without it.
Blood Transfusion: Vietnam
What the Vietnam War taught doctors about blood clotting.
Blood Transfusion: Falklands
What the Falklands War taught doctors about blood clotting.
Healthy Heart
Why fatty foods harm your heart.
Heart
What does the heart look like and how does it work?
FactPack: Heart
How do human and animal hearts compare?
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Why is Blood Red?
Some animals have pink or blue blood. Why is ours red?
