Should nature study replace school? The BBC’s Bird Photographer of the Year awards shows the lessons that nature can teach us. Some even say it can teach us all we need to know.
Birds teach the meaning of love says expert
All too human: Levi Fitze's dramatic penguin photo won him a medal. Glossary
Shoal - A group of fish swimming together.
John Stuart Mill - A 19th-Century English philosopher who wrote extensively about freedom and democracy. He is regarded as the father of modern liberalism.