Migration: Some species simply can't survive in one place. Epic flights, adventurous sea journeys, and exhausting road trips all play a key part in the lives for many animals. (S1, ep 6) [S]
Sanctuary: In the wild, having company means protection, while isolation often leads to danger. See how groups of animals work together to fight off threats. (S1, ep 5) [S]
Infestation: Finding a home in new territory is a challenge, but sometimes, animals have no choice. Using sheer numbers to impose their will, these are nature's unwanted guests. (S1, ep 4) [S]
Animals Gone Wild: What happens when domestic and farm animals escape to the wild? After years of being cared for, they face a race to learn the skills needed for survival. (S1, ep 3) [S]