Narrator: Muscles! Really? They don't look much use. When a muscle contracts (bunches up), it gets shorter and so pulls on the bone it is attached to. When a muscle relaxes, it goes back to its normal ...
7 x 51 in. (17.8 x 129.5 cm.) Subscribe now to view details for this work, and gain access to over 18 million auction results. Purchase One-Day Pass ...
Scientifically, artistically, and environmentally speaking, there’s a lot to take into account.
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