A bird's-eye view (鸟瞰) captures (捕获) the serpentine (蛇般蜿蜒的) course of a river in Peru’s mountainous Chachapoya region(秘鲁查查波亚山区). Herds of grazing cattle (一群群在吃草的牛)can be seen as tiny specks (小斑点) on the vast, green landscape (风景).
A green tree snake peers (凝视)from its leafy perch in Costa Rica’s Caribbean lowland (哥斯达黎加的加勒比海低地. These tropical rain forests(热带雨林) surround the famed La Selva Biological Station(拉塞尔瓦生物研究站), a center for ecological(生态) research.
A rare white alligator (白短吻鳄) swims at the Audubon Zoo in New Orleans (新奥尔良奥特朋动物园). Albino (白化病) gators are ill suited (很难适应)for life in the wild because their pale skin offers little protection from the sun.