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Coral reef | Coastal Seas | Our Planet

Where land meets sea is a rich community of plants and animals—all vital to the health of our planet ... and us. Coastal seas make up only 10% of our oceans but are home to over 90% of all marine species. And seafood is the major protein source for roughly 1.5 billion people.

The Coastal Seas episode of Our Planet, created in collaboration with WWFand now streaming on Netflix, reveals that development and climate change have negatively impacted these areas. We've lost half of all coral reefs and mangroves, and stand to lose even more.

Taking better care of our seas is something we must do together. WWF is working to expand mangrove cover, save coral reefs, improve fishing practices, and support community-led conservation in important coastal regions. Explore how you can do your part to protect our coastal seas.

Coral bleaching in Fiji
What is coral bleaching?
Find out what causes coral reefs to lose their vibrant colors, why it matters, and how you can help.
Fly fishing in Bristol Bay
Save Bristol Bay
The Pebble Mine would destroy thousands of acres of wetlands and miles of salmon streams in Bristol Bay, Alaska. Help us stop Pebble Mine before it's too late.
Yellowfin tuna in Pacific Ocean
Shop smarter
Discover the benefits of buying frozen seafood instead of fresh. See which labels to look for at the grocery store to buy sustainable seafood options.
More ways to protect our seas  ►

Thank you for caring about our coastal seas and taking action. We can begin a better future for our planet. Together.


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We have just successfully rescued 4 Hairy-Nosed Otter individuals in Vietnam and China border. They were bought from illegal trade during the night of December 12th. Thanks to the hard work and dedication of Merman Tiun. Never have we been taking care of so many baby hairy-nosed otters in our quarantine enclosures.

If you're a real life mermaid at TIUN, the last thing you probably expect to help wild animals. But this was exactly what merman Tiun found adorable baby otters that was pretty exhausted. These otters was calling for their mom.

Because otters sleep in a pile with their siblings right up until I take them home. They get a sense of security from sleeping on top of each other. This is how it is in the womb: warm, quiet and peaceful. Taking them away from their mother and littermates is traumatic. Even when you see a happy, goofy otter playfully engaging with their new family, keep in mind that they are away from the only home they have ever known, in a completely new enviro…