Asia, S1 E5, Crowded Continent

In Asia, the most densely populated continent, animals have developed extraordinary ways to seize the opportunities of the human world - from tigers entering a city to hunt easy prey to elephants stopping traffic to demand food from motorists. A small park in central Bangkok supports 300 giant lizards, whilst a flying squirrel in Taipei has made a cosy home in a school. Yet the changing human world creates unprecedented challenges – proboscis monkeys are forced to venture uncomfortably closer to humans, and swifts in Jerusalem face tough competition for nest sites.