WWF looks for places that offer:

• The most intact remaining rainforests: Amazon, Congo Basin, New Guinea
  
   
• The most species-rich rainforests: western Amazon, northwest South America
  
   
• The richest selections of rare endemic plants and animals: New Caledonia, Fiji, Vanuatu, South Africa, southwest Australia, Madagascar
  
   
• The richest large river systems and the the world’s oldest river: Amazon, Orinoco, Congo, Mekong, Yangtze, and the New River in southeast United States
  
   
• The most unique and diverse deserts: Namib-Karoo-Kaokoveld Deserts, Chihuahuan Desert
  
   
• The most diverse tropical grasslands, savannas and woodlands: central and eastern Africa, central and eastern South America, North America
  
   
• The tallest grasslands filled with the highest densities of tigers and rhinos: Eastern Himalayas
  
   
• The most outstanding montane areas: Himalayas, Albertine Rift
  
   
• The most diverse coral reefs: Coral Triangle, Great Barrier Reef, New Caledonia, Fiji, East Africa
  
   
• The most productive seas: Arctic, Southern Oceans, West Africa

We also continue to work in a limited number of regional priority areas that are locally important and have a long history of WWF conservation success:

• the European Alps,
• Baltic,
• Gulf of California,
• Indus Delta,
• Mesoamerican Reef, and
• Yellow Sea.