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Hawaiian monk seal Sole

The Marine Mammal Center advances global ocean conservation through rescue and rehabilitation, scientific research, and education.

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What We're Working On

California sea lion with mouth open

Cancer

whale feeding with oil rig in background

Climate Change

harbor seal Woody eating a fish

Sustainable Seafood

Two Hawaiian monk seals sleeping on the beach.

Hawaiian Monk Seal Conservation

Hawaiian monk seal tangled in fishing gear

Ocean Trash

Ways to Give

Your support makes life-saving work possible. Our patients rely on the generosity of people like you. There are many different ways to make a gift today and help return marine mammals to a healthier ocean home.

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sea otters Langly and Sprout

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trio of California sea lions returning to the wild

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What's New

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California sea lion Jenya released back to the wild

California Sea Lion Jenya Returns Home for the Holidays

dolphins leaping out of the water

New Skin Disease in Dolphins Linked to Climate Change

Some Ocean Optimism graphic

Some Ocean Optimism Ep. 6: Hawaiian Monk Seals

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California sea lion Seadog

Seadog

California Sea Lion — Male
Released
sea otter pup patient Langly
threatened

Langly

Southern Sea Otter — Female
Released
elephant seal patient Bilbo being released back to the wild

Bilbo

Northern Elephant Seal — Male
Released

The Marine Mammal Center In The News

Interested in talking to our experts? Contact our media team.

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a dead gray whale on the shore of Angel Island with the Golden Gate Bridge in the background
In the News

San Francisco Chronicle: Gray Whale Die-off Pushes into Second Year. Can the Giants Survive?

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dolphin leaping out of the water
In the News

Forbes: Mysterious Dolphin Deaths Linked To Climate Change In New Study

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plastic pollution floating in the ocean
In the News

Washington Post: Used Masks Polluting California Coastal Waters

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student with laptop
In the News

Marin Independent Journal: Marin Ocean Wildlife Center Launches Student Program

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a group of sea otters
In the News

Marin Independent Journal: Want to Save Sea Otters? Key Might Be Moving Them into San Francisco Bay

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two bottlenose dolphins
In the News

Good Housekeeping: The 50 Best Charities to Give to Right Now

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