. >> their research-employed satellite mapping, forestry data, and good old fashioned jungle gum shoeing. trees like these are natural consumers of carbon monoxide which leads to global warming. their research suggests rain forests are absorbing far more co2 than previously reported. >> if they're not taking up carbon, the simple answer is there would be 25% more carbon in the atmosphere than there actually is and the rate of warming would be approximately 25% faster. they're helping to regulate our climate. >> despite an overall decline in the destruction of rain forests over the past decade, it's still a story of paradise lost. farming, construction, pollution, and drought. just to name some of the threats to these incredibly complex ecosystems. understanding and documenting the life in these forests is like taking their pulse. >> so we just got into the bat cave and it is absolutely amazing. length of those antenna are incredibly long which tells you that this thing is specifically adapted to living in the dark. >> what do we have inside? >> we got insects and -- wow, some of these ar