Watch Wildest Indochina

Tucked away in China's southwest corner is a hidden oasis unlike any other; approximately half of China's birds and mammals live in this tiny region.

Less than 50 years ago, Vietnam's forests were decimated as a battle between people became a war against nature. Today, the wildlife has bounced back.

Cambodia is one of the most biodiverse countries in Southeast Asia, whose wildlife and climate are ruled by the extremes of the monsoon cycle.

Thailand is a land of extremes, where the range of wildlife creates great biodiversity but also presents huge challenges.

Malaysia's warm temperatures and rainfall nourish a dizzying variety of habitats; the nation is one of only a few places described as "mega-diverse."