△最小的偶蹄动物是鼷鹿，体重约1000克。△最高的树是望天树，傣语称为”埋干仲”（伞把例），一般高50～70m，最高的一棵高达88m，分布在勐腊县瑶区乡。△最长的叙事诗是傣族古代叙事长诗《乌萨玛罗》，长达10多万行。△最长的吊桥是罗梭江吊侨，它把两岸的勐仑与西双版纳植 △ the smallest cloven-hoofed animals are deer, weighs about 1000 grams. △ The highest tree is Hope tree, Dai language is called “buried Zhong” (umbrella case), generally 50 ~ 70m high, the highest one up to 88m, located in Yao Township, Mengla County. △ longest narrative poem is Dai ancient narrative poem “Usamaro”, up to more than 10 million line. The longest hanging bridge is the Luohusuo Jiangqiao overseas Chinese, it is the two sides of Menglun and Xishuangbanna planting