Dancing Birds and Singing Apes

When it comes to love, it''s not only humans who like to plan a romantic proposal.

Meet a penguin on the hunt for a pretty pebble to impress his partner, a flurry of flamingos turning a lake into a matchmaking dance floor and even pair of sweetly serenading gibbons!

Travel from the deepest depths of the ocean to tropical rainforests and beyond, discovering the weird and wonderful wooing techniques o...