one example the lake titicaca frog they are working to save in peru. --brian aucone / denver zoo-- --00:03:51-4:00-- we work on all right how do we address those factors how do we work with the communities how do we work with the government to say hey if we want to save this frog and it's the only place that it occurs these are the things that we need to do. despite the challenges he and researchers believe animals can meat or do you want to use renewable energy's but it's going to be a personal decision. for the now, i'm kumasi aaron. the report found -- without immediate intervention -- global wildlife populations -- could drop two-thirds -- by 2020. karla -- has another look at your work-week forecast. but right now -- here's a live look at the valley. you're watching -- 13- action news -- where we bring you -- breaking news -- fast and first. we've learned a lot about how joe heck works. follow the money. he called nevada's foreclosure crisis a "blip" and took almost $700,000 from wall street, including some of the same banks who caused the crisis.