The smart collars keeping cows penned in - BBC News
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Proboscis Monkeys Leap Into Crocodile-Infested River | BBC Earth
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Por que você precisa de cabras em sua fazenda
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Virtual Fencing as a Climate Adaption Strategy
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Wolf Pack Takes on a Polar Bear - Ep. 1 | Wildlife: The Big Freeze
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The invisible fenceline | virtual fencing for weed control
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How Nofence works
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GPS collars for cows to eliminate need for fences
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