The Season 1 finale focuses on marine mammals. In New Zealand, the mating behaviors of dusky dolphins are explored. Also: how whales find mates in the ocean vastness. Included: a dolphin birth; and the difficulties of breastfeeding underwater.
The reproductive secrets of marsupials are examined. Included: the gravity-defying mating of koalas; a baby kangaroo's first steps; and a fostering program for rock wallabies. Also: a dissection of a kangaroo reveals its unique reproductive anatomy.
Orangutan reproductive behavior is examined. Included: theories on how alpha males exert control over other males and seduce females; tactics females use to control mating; and the lengthy period of time devoted to raising a child.
The reproductive behaviors and biology of animals are examined in this series, beginning with elephants. Included: how females select their mates; why elephants have the longest pregnancy in the animal kingdom; how they safely give birth; and the first steps of a newborn calf.