ANGKOR WAT, Aug 7 (AFP): The melodic songs from families of endangered monkeys ring out over the jungle near Cambodia's Angkor Wat temple complex - a sign of ecological rejuvenation decades after hunting decimated wildlife at the site.The first pair of rare pileated gibbons were released in 2013 as part of a joint programme between conservation group Wildlife Alliance, the forestry administration and the Apsara Authority - a government agency that manages the 12th-century ruins.