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Giant Otters: Wolves of the River

David Attenborough narrates a documentary about six-foot-long otters in the Peruvian Amazon. Despite their size, they are preyed upon by something even bigger, the five-metre black caiman - an alligator-like reptile. This film reveals the high-tension relationship between these two predators.

29 minutes

Last on

Wed 25 Mar 2009 11:00
BBC Two except Yorkshire