The Wonder of Animals: Crocodiles

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Chris Packham examines what lies beneath a crocodile's hard exterior, discovering the secret to its ancient history and gaining an insight into one of the most sophisticated physiologies on the planet. By following all stages of a crocodile hunt, Chris reveals how their extraordinary circulatory system enables them to hold their breath for more than an hour, and looks at how their exceptionally sensitive skin detects their prey through water.