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With the changing season comes a new look on our website. Explore our new design, featuring beautiful nature photography and colors that celebrate our favorite wild landscapes. We hope you enjoy!
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10 years of conservation in Sumatra's Thirty Hills
Located in the heart of central Sumatra, the forests of Thirty Hills harbor some of the world's most critically endangered species. We're sharing 10 successes from the past decade of forest protection, while working closely with local and Indigenous communities. |
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Pledge to cut down on food waste
Food waste affects our planet, accounting for about 10% of global greenhouse gas emissions. You can help by signing the pledge to do your part and reduce food waste in your home. Get started today. |
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Do you know?
Do you know what this climate-friendly food is? Hint: It can last for years in your cupboard and is packed with nutrients. |
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Size
The Costasiella sea slug can be up to 0.3 inches long. |
Interesting info
One of the few animals able to photosynthesize, this sea slug eats a particular type of seaweed and stores the chloroplasts in its own body. This enables it to transform sunlight into energy—a process that gives the mollusk its green color. |
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Costasiella sea slugs are usually found close to coral reefs, where they contribute to the local ecosystem by keeping algae populations in check. They often graze together, like a herd of minuscule sheep. In fact, they are also known as leaf sheep. The leaflike structures covering their bodies provide more surface area for photosynthesis. |
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Pop quiz
After gray wolves were reintroduced to Yellowstone National Park in 1995, which of these species declined? |
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WWF en Español |
En WWF ofrecemos una gran cantidad de contenido en español como parte de nuestros esfuerzos por llegar a la comunidad Latina e Hispana de Estados Unidos. Visita nuestro sitio web o síguenos en Facebook, X, Instagram, y YouTube para más información. |
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Photos: Orangutan in Sumatra © Neil Ever Osborne/WWF-US; Cutting vegetables © Elizabeth Dalziel/WWF-UK; Indigenous beekeeper © Tatiana Cardeal/WWF-US; Green club guide © WWF-US; Clownfish © James Morgan/WWF-US; Nature Breaking image © Adriano Gambarini/WWF-US; Gorillas and travelers © Richard de Gouveia; Mystery food © Shutterstock.com/Aerdphoto; Costasiella sea slug © Shutterstock.com/KaenS; Howler monkey © Shutterstock.com/M Antonello Photography; Gray wolf in Yellowstone National Park © Eric Sackler; Asian elephant © Christy Williams/WWF; People in kayak © WWF/Tatiana Cardeal; Group of people © Green Renaissance/WWF-US; Beavers © Bruce D. Taubert |
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