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Marine Mammal Center

Bay Area celebrity sea lion 'Chonkers' is getting his own plushie

May 6

Dead whale at CA Beach appears to have been killed by an orca: experts

May 1

Beloved Steller sea lion 'Chonkers' missing from SF's Pier 39

Have you seen Chonkers? The roughly 2,000-pound Steller sea lion became an internet sensation during his extended stay on the decks at Pier 39, where he even got his own sign and plush toy from the Marine Mammal Center. Visitors have continued to stop by in hopes of spotting him.

May 8

Gray whale found dead in SF as CA expands program to slow down ships

Apr 23

Lauren Campbell / The Marine Mammal Center

Sea lion pup found on SF street corner is on the mend: officials

Apr 21

Crews rescue sea lion pup found on side of SF street

Apr 17

Video shows windsurfer colliding with gray whale on SF bay

Apr 1

SF researchers find ocean warming reaching deeper than expected

Feb 3

Sea lion pup rescued after found in Mountain View parking lot

Jan 15

Latest Videos

2:36

Beloved Steller sea lion 'Chonkers' missing from SF's Pier 39

May 8

0:41

Bay Area celebrity sea lion 'Chonkers' is getting his own plushie

May 6

0:20

Dead Whale at CA Beach appears to have been killed by an Orca: experts

May 1

2:55

Gray whale found dead in SF as CA expands program to slow down ships

Apr 23

0:31

Sea lion pup found on SF street corner malnourished but 'active and quite feisty,' officials say

Apr 21

0:28

Crews rescue sea lion pup found on side of SF street

Apr 17

1:41

Windsurfer collides with gray whale on SF bay; scientist raises concerns over marine life safety

Apr 1

2:40

SF researchers find ocean warming reaching deeper than expected

Feb 3

Latest Stories

Oceanic heat wave caused by climate change could endanger marine life, Bay Area scientists say

We may not notice it, but marine creatures off the Bay Area coast are already feeling the heat. Ocean temperatures in the north Pacific have been recording historic highs because of what's commonly known as a "blob," or marine heat wave.

Oct 31, 2025

Bacterial disease threatening sea lions along CA's central coast earlier than usual, experts say

There's an outbreak of a bacterial disease threatening sea lions on the central coast, and it's starting earlier than usual.

Aug 2, 2025

21 gray whales found dead in SF Bay so far this year, most since 2000: scientists

The latest of the 21 dead whales washed up July 7 in Richmond after a suspected vessel strike, marking the highest number of gray whale fatalities in 25 years, according to the Marine Mammal Center.

Jul 21, 2025

Animal trauma could be linked to bad human behavior, Bay Area marine mammal experts say

The Marine Mammal Center in Sausalito wants to protect marine creatures from well-meaning humans. That's after a study confirmed evidence of human involvement in a significant percentage of animal rescues.

Jun 25, 2025

Gray whale washes up in Richmond, the 17th spotted in the Bay Area this year

The gray whale was up against rocks along Point Isabel in Richmond.

Jun 16, 2025