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When dozens of Jackson chameleons escaped a Hawaiian pet shop in 1972, they started to wreck havoc on the local ecosystem. Subscribe: #EarthsTropicalIslands Watch more: Planet Earth Blue Planet Planet Earth II Planet Dinosaur Earth's Tropical Islands - 2020 Three iconic islands. Madagascar. Borneo. Hawaii. Each a contained ecosystem, cut off from the mainland. Rich in extraordinary wildlife and human cultures, these islands are also some of the most fragile places on Earth. Madagascar's extreme landscapes have given rise to the largest collection of unique animals found on any island, including its famous lemurs. Borneo is home to swimming monkeys, flying snakes and giant carnivorous plants - only the most tenacious can survive its steaming jungles and high mountains. Colonising the isolat
