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Why some animals have extreme armaments, including claws, horns, fangs and stings.
Movie rating: 7.7 / 10 (0)
Directed by: Peter Fison - Douglas J. Emlen
Writer credits: Douglas J. Emlen
Cast: Eric Meyers - Doug Averill - Doug Emlen - Stephen Emlen - Jack Hogg
AKA: Aux origines de l'humanité, Nova