News from Nature
At the Cheyenne Mountain Zoo in Colorado, a team of dedicated keepers takes a relatively new approach to raising an orphaned baby gorilla - treat the gorilla like a gorilla. Zookeepers go to great lengths to ensure the ape will one day be accepted back to the troop. Wild Chronicles discovers that acting like a gorilla foster mom is no monkey business.

Crittercam®
Home to the endangered Hawaiian monk seal, the Northwest Hawaiian Islands are one of the most geographically isolated places on the planet. Despite this distinction, manmade threats abound. Crittercam® exposes the seal's world, making many surprising discoveries that may help save this endangered animal.

Adventure and Exploration
Deep in the jungles of Guyana, National Geographic researchers hunt for new species. But this expedition is no picnic: the satellite phone is not working, a GPS unit is missing and food is running out. Tired and lost, survival is the new mission for these intrepid scientists.

Stories from the Wild
Travel to Brazil where scientists work to release a family of captive black lion tamarin monkeys into the Brazilian rainforest. Deforestation and inbreeding are endangering the species. Scientists hope that these youngsters will bring new genetic diversity to the population. But life in the wild is not so easy for these captive-raised monkeys.

Sunday, 10/1 from 7:30-8 p.m. ET