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The diversity of life isn’t evenly distributed around the globe.

It is concentrated in certain places. Which makes specific places a priority for conservation. These spectacular places include the world’s largest and most intact tropical rain forests, diverse freshwater systems, varied coral reefs, and productive fishing grounds. All of these places are also home to many endangered species.

Priority Places

WWF works to protect places based on the wealth and variety of life they support, the destructive challenges they face, and our ability to positively impact them.


Some habitats, such as tropical forest and coral reefs, support extremely rich groups of species, while others, such as tundras and deserts, are more austere. But all are unique expressions of life.


Travel with us to see the planet's most dynamic wildlife—and help protect it.


Biodiversity is not spread evenly across the Earth but follows complex patterns determined by climate, geology and the evolutionary history of the planet. These patterns are called ecoregions.

To address the need for a more relevant conservation planning unit, WWF created 1,480 ecoregions that categorize the world into its natural ecosystems.

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