In Costa Rica, insect numbers are in decline. Patrick heads deep into the rainforest to find out just how far and wide this change is being felt.

Patrick is in Costa Rica to witness the annual mass nesting of sea turtles, as well as the predatory jaguars that come in for the kill.

Patrick is in British Columbia for the annual salmon run, which not only ensures the species' survival but also sustains the entire rainforest ecosystem.

Join Patrick in the Great Plains of North America, as he explores the intricate web that connects grasses and dung beetles to bison and the grizzly bear.