![two humpback whales surfacing under the Golden Gate Bridge](https://www.marinemammalcenter.org/storage/app/uploads/public/f22/c99/1bb/thumb__1600_0_0_0_crop.jpg)
The Marine Mammal Center advances global ocean conservation through rescue and rehabilitation, scientific research, and education.
Our Sausalito Hospital & Visitor Center is Open to the Public
Visit the world’s largest marine mammal hospital to see animal care experts providing life-saving care to patients so they can be released back to the wild. Tickets are free but must be booked online in advance. Reserve your spot today!
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.
![Charity Navigator Four Star Charity](https://www.marinemammalcenter.org/storage/app/uploads/public/fe8/be8/b21/thumb__225_0_0_0_crop.png)
![Charity Watch logo](https://www.marinemammalcenter.org/storage/app/uploads/public/167/820/457/thumb__225_0_0_0_crop.png)
![Independent Charities Best in America seal](https://www.marinemammalcenter.org/storage/app/uploads/public/5b0/1cc/680/thumb__225_0_0_0_crop.png)
![Guidestar Platinum Seal of Transparency 2023](https://www.marinemammalcenter.org/storage/app/uploads/public/77f/448/fa4/thumb__225_0_0_0_crop.png)
What's New
Stay up to date on the latest news from The Marine Mammal Center by signing up for email updates.
The Marine Mammal Center In The News
{"image":"\/Animals\/Wild\/Gray whale\/cropped-images\/gray-whale-tail-sf-skyline-by-darrin-allen-c-the-marine-mammal-center-60-0-624-487-1719870230.jpg","alt":"gray whale tail seen above water with San Francisco skyline in the distance","title":"Mercury News: Lots of Gray Whales Are Swimming Under the Golden Gate Bridge into San Francisco Bay. Why?","link_url":"https:\/\/www.marinemammalcenter.org\/news\/mercury-news-lots-of-gray-whales-are-swimming-under-the-golden-gate-bridge-into-san-francisco-bay-why","label":"In the News","date":"2024-06-24 02:00:00","type":"news"}
![gray whale tail seen above water with San Francisco skyline in the distance](https://www.marinemammalcenter.org/storage/app/uploads/public/b7f/5e7/bb7/thumb__237_185_0_0_crop.jpg)
Mercury News: Lots of Gray Whales Are Swimming Under the Golden Gate Bridge into San Francisco Bay. Why?
June 24, 2024
Read More{"image":"\/Animals\/Wild\/California sea lion\/cropped-images\/pier-39-shutterstock-10-0-4328-3380-1604430869.jpg","alt":"sea lions at PIER 39","title":"NPR: A Seafood Bounty Lures Sea Lions to S.F.'s PIER 39 in Numbers Not Seen in 15 Years","link_url":"https:\/\/www.marinemammalcenter.org\/news\/npr-a-seafood-bounty-lures-sea-lions-to-sfs-pier-39-in-numbers-not-seen-in-15-years","label":"In the News","date":"2024-05-04 02:00:00","type":"news"}
![sea lions at PIER 39](https://www.marinemammalcenter.org/storage/app/uploads/public/131/105/b9c/thumb__237_185_0_0_crop.jpg)
NPR: A Seafood Bounty Lures Sea Lions to S.F.'s PIER 39 in Numbers Not Seen in 15 Years
May 4, 2024
Read More{"image":"\/Animals\/Patients\/Releases\/cropped-images\/csl-release-by-bill-hunnewell-c-the-marine-mammal-center-278-2-3752-2931-1715194127.jpg","alt":"two California sea lions return to the wild","title":"Voice of America: Sea Mammals and Ocean Health","link_url":"https:\/\/www.marinemammalcenter.org\/news\/voice-of-america-sea-mammals-and-ocean-health","label":"In the News","date":"2024-04-17 02:00:00","type":"news"}
![two California sea lions return to the wild](https://www.marinemammalcenter.org/storage/app/uploads/public/6da/aae/f23/thumb__237_185_0_0_crop.jpg)
{"image":"\/Animals\/Wild\/Harbor seal\/cropped-images\/harbor-seals-shutterstock-307-0-4076-3184-1645666025.jpg","alt":"group of harbor seals on a beach","title":"ABC7: You Might Be Unintentionally Harming Young Marine Mammals, Rescue Center Says","link_url":"https:\/\/www.marinemammalcenter.org\/news\/abc7-you-might-be-unintentionally-harming-young-marine-mammals-rescue-center-says","label":"In the News","date":"2024-04-25 02:00:00","type":"news"}
![group of harbor seals on a beach](https://www.marinemammalcenter.org/storage/app/uploads/public/796/b17/b4b/thumb__237_185_0_0_crop.jpg)
ABC7: You Might Be Unintentionally Harming Young Marine Mammals, Rescue Center Says
April 25, 2024
Read More{"image":"\/Animals\/Wild\/Gray whale\/cropped-images\/gray-whale-c-joey-meuleman-227-168-1080-844-1610669953.jpg","alt":"gray whale barely visible above the water","title":"Associated Press: Rescuers Search for Young Whale Entangled in Gill Net","link_url":"https:\/\/www.marinemammalcenter.org\/news\/associated-press-rescuers-search-for-young-whale-entangled-in-gill-net","label":"In the News","date":"2024-04-10 02:00:00","type":"news"}
![gray whale barely visible above the water](https://www.marinemammalcenter.org/storage/app/uploads/public/fd6/a4b/801/thumb__237_185_0_0_crop.jpg)
Associated Press: Rescuers Search for Young Whale Entangled in Gill Net
April 10, 2024
Read More{"image":"\/Animals\/Patients\/Hawaiian monk seals\/2024\/cropped-images\/hms-rs10-release-photo-c-the-marine-mammal-center-noaa-permit-24359-0-0-966-755-1712699238.jpg","alt":"Hawaiian monk seal RS10 returns to the ocean","title":"Honolulu Star-Advertiser: Rescued Hawaiian Monk Seal Pup Returns to Ocean, Hook-Free","link_url":"https:\/\/www.marinemammalcenter.org\/news\/honolulu-star-advertiser-rescued-hawaiian-monk-seal-pup-returns-to-ocean-hook-free","label":"In the News","date":"2024-04-09 02:00:00","type":"news"}
![Hawaiian monk seal RS10 returns to the ocean](https://www.marinemammalcenter.org/storage/app/uploads/public/ea4/c09/b30/thumb__237_185_0_0_crop.jpg)
Honolulu Star-Advertiser: Rescued Hawaiian Monk Seal Pup Returns to Ocean, Hook-Free
April 9, 2024
Read More