Joy and Mark travel to Africa to explore the unique reproduction challenges of the largest animal on land — the elephant. Find out how females select the strongest mates, why elephants have the longest pregnancy in the animal kingdom and how they safely deliver a 220-pound baby; witness the remarkable first steps of a newborn calf.
Learn how animals that breathe air mate, give birth and raise their young underwater.
Joy and Mark uncover the reproductive secrets of the pouch-wearing marsupials.
Joy and Mark to explore the reproduction challenges of our orangutan cousins.
