Animal Geography & Evolution

Fauna: animal life by continent, habitat & evolution

A source-transparent guide to the world's land animals — where they are found, the habitats they live in, and the deep evolutionary story that connects land fauna to aquatic ancestors.

What fauna means

Fauna is the animal life of a place or time. This layer of FaunaHub organises our existing animal profiles by geography and evolution: which continents and habitats an animal is associated with, and how today's land animals connect to life that began in water.

These pages are educational and source-backed. They are not range maps and do not claim to be complete — animal distribution is genuinely complex, and we describe it cautiously.

Explore land fauna by continent

Representative animals from each continent, linked to their full FaunaHub profiles.

All continents →

Explore animals by habitat

Habitat tags describe the broad environments an animal is associated with — a quick way to see ecological patterns across continents.

ForestGrasslandSavannaDesertMountainTundraWetlandFreshwaterCoastalIslandPolarUrban-adapted

80 animal profiles are mapped across 12 habitat types.

From water to land — evolutionary context

Land animals are part of a much older story that began in water. The scientific consensus is that life originated in aquatic environments and that today's land animals descend, over deep geological time, from aquatic ancestors. We summarise this carefully — without overstating the unsettled detail of life's origin.

Read the water-to-land story →

Conservation context

Where an animal lives is closely tied to how it is faring. Habitat loss, climate change, and human pressure all reshape animal distribution over time. For conservation status — which is a dated snapshot, never permanent — see our endangered animals pages, and always verify current status with official authorities.

Now live

Ocean fauna by depth zones

The ocean is layered by depth, light, and pressure. Explore marine animals from the sunlit surface to the deep trenches across five depth zones — source-backed zone science, with the animals documented in each layer.

Explore ocean depth zones →

Frequently Asked Questions

What does “fauna” mean?
Fauna is the animal life of a particular region or period. FaunaHub's fauna layer organises animals by geography — continents and habitats — and by evolutionary context, linking to our existing animal profiles.
Are the continent pages complete range maps?
No. They are cautious, source-backed selections of representative animals, not complete range maps. A species' distribution can differ between native, introduced, migratory, and captive ranges, so we describe ranges carefully and show a confidence label.
Did land animals come from the sea?
Land animals descend, over deep geological time, from aquatic ancestors. Our water-to-land evolution page summarises the accepted scientific framing without overstating the unsettled detail of life's origin.
Will ocean animals be added?
Yes. An ocean-fauna layer organised by depth zones is planned as the next step. We are not publishing thin ocean pages before that full, source-backed cluster is ready.