Mists over the Amazon

The Amazon rainforest is big. Almost unimaginably big. It covers about 2% of the world's surface area, nearly 2.1 million square miles across South America, mostly (nearly 60%) in the country you see here, Brazil. It is home to over half of the Earth's remaining rainforests, nearly 16,000 different tree species, 40,000 species of other plants, 2.5 million insect species and over 2,000 different types of birds and mammals. Incredibly, perhaps a tenth of the planet's known species live here, many of which have not even been identified.
© Pulsar Imagens/Alamy