Dive deep into South Texas to meet one of America's most endangered cats: the ocelot. With about 120 known ocelots remaining, the future of the U.S. ocelot population relies on ranchers, scientists and government agencies working together.

Immerse yourself in Scotland's wild highland landscape and meet its long-lived forest keeper, a magnificent Scots pine tree. As one of its longest living species, this ancient tree has witnessed the nation's history across 500 years.