woman: southern california is one of many hotspot areas around the globe which are areas of extraordinary biological diversity. man: if we just think about l.a. county, you re going from sea level to 10,064 feet when you get up to mt. san antonio. when you think about that elevational range, which is the greatest elevational range of any cnty in the united states, there s a diverse suite of habitats in there, and that includes habitat that might be right along the busiest freeway in the country.but it also includes places where mountain lions live. i mean, it s just this place of absolutely incredible diversity when it comes to thinking about types of habitat and types of species that are thriving here. man: h, i thought i told you guys to get out of here. now, go. come on. get out of here. male reporter: we have a mom and her kids all going for a nice, refreshing swim all at the exact same time. woman: there is a hidden jungle in cities like los angeles, and a hidden savanna
woman: southern california is one of many hotspot areas around the globe which are areas of extraordinary biological diversity. man: if we just think about l.a. county, you re going from sea level to 10,064 feet when you get up to mt. san antonio. when you think about that elevational range, which is the greatest elevational range any county in the united states, there s a diverse suite of habitats in there, and that includes habitat that might be right along the busiest freeway in the country.but it also includes places where mountain lions live. i mean, it s just this place of absolutely incredible diversity when it comes to thinking about types of habitat and types of species that are thriving here. man: h, i thought i told you guys to get out of here. now, go. come on. get out of here. male reporter: we have a mom and her kids all going for a nice, refreshing swim all at the exact same time. woman: there is a hidden jungle in cities like los angeles, and a hidden savannah
woman: southern california is one of many hotspot areas around the globe which are areas of extraordinary biological diversity. man: if we just think about l.a. county, you re going from sea level to 10,064 feet when you get up to mt. san antonio. when you think about that elevational range, which is the greatest elevational range of anyounty in the united states, there s a diverse suite of habitats in there, and that includes habitat that might be right along the busiest freeway in the country.but it also includes places where mountain lions live. i mean, it s just this place of absolutely incredible diversity when it comes to thinking about types of habitat and types of species that are thriving here. man: h, i thought i told you guys to get out of here. now, go. come on. get out of here. male reporter: we have a mom and her kids all going for a nice, refreshing swim all at the exact same time. woman: there is a hidden jungle in cities like los angeles, and a hidden savanna
woman: southern california is one of many hotspot areas around the globe which are areas of extraordinary biological diversity. man: if we just think about l.a. county, you re going from sea level to 10,064 feet when you get up to mt. san antonio. when you think about that elevational range, which is the greatest elevational range of any cnty in the united states, there s a diverse suite of habitats in there, and that includes habitat that might be right along the busiest freeway in the country.but it also includes places where mountain lions live. i mean, it s just this place of absolutely incredible diversity when it comes to thinking about types of habitat and types of species that are thriving here. man: h, i thought i told you guys to get out of here. now, go. come on. get out of here. male reporter: we have a mom and her kids all going for a nice, refreshing swim all at the exact same time. woman: there is a hidden jungle in cities like los angeles, and a hidden savanna
woman: southern california is one of many hotspot areas around the globe which are areas of extraordinary biological diversity. man: if we just think about l.a. county, you re going from sea level to 10,064 feet when you get up to mt. san antonio. when you think about that elevational range, which is the greatest elevational rangof any county in the united states, there s a diverse suite of habitats in there, and that includes habitat that might be right along the busiest freeway in the country.but it also includes places where mountain lions live. i mean, it s just this place of absolutely incredible diversity when it comes to thinking about types of habitat and types of species that are thriving here. man: h, i thought i told you guys to get out of here. now, go. come on. get out of here. male reporter: we have a mom and her kids all going for a nice, refreshing swim all at the exact same time. woman: there is a hidden jungle in cities like los angeles, and a hidden savanna