NATURE retraces the life of Titus, silverback leader, from birth to present reign, spanning a tumultuous period in the history of a species and a nation in "The Gorilla King."

For nearly 40 years an albino gorilla named Snowflake was adored by people around the world.

Both humans and animals seem to be hard-wired to find youngsters adorable. Baby Tales explores the reasons why the young play on our heart strings.