From palm trees to penguins, bacteria to blue whales, Earth teems with life. The areas of the planet that sustain these life-forms are called habitats. Ocean trenches, the peaks of the Himalaya, the dunes of the Sahara, even the streets of Shanghai—all are habitats that give rise to unique species that adapt according to what each place has to offer. And all are part of an interconnected system that makes the richness of life on Earth possible. Explore these habitats.