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Sir David Attenborough journeys into the forests, where dogs communicate with whistles, treehoppers fight assassin bugs, ‘spirit bears' fish, and hornbills imprison themselves in trees.
Fresh water is the lifeblood of planet Earth, where incredible animal dramas play out. From death-feigning fish to frogs that glide, each depends on fresh water for their survival.
David Attenborough presents an extreme world where animals battle to survive the elements – and life exists on a knife edge.