San Francisco snaps at chance to celebrate Claude the albino alligator’s 30th ‘hatch day’

SAN FRANCISCO (CN) — Claude the albino alligator may be one of San Francisco’s most beloved celebrities, so it’s no surprise the 10-foot-long, 200-pound reptile had a monthlong birthday celebration centered around his 30th “hatch day” party Sunday.

Claude hatched on an alligator farm in Louisiana in 1995 and came to San Francisco in 2008 to join the California Academy of Sciences, a longstanding museum that had just found a new home in Golden Gate Park.

“When Claude came to Cal Academy in 2008 with the opening of our new building, people were just delighted by him,” said Jeanette Peach, communications director at the California Academy of Sciences.

“He stands out in your memory. He’s big, he has a lot of teeth, he’s white, and he’s also just kind of like beautifully serene on his rock a lot of the time. We didn’t necessarily decide he was going to be our mascot, but the people did, and they loved him,” Peach said.

Claude’s unique hue is attributed to albinism, a genetic mutation that affects the production of melanin. While he may look white, Claude’s skin is actually translucent. His signature pinkish-red eyes get their color from blood vessels.

Peach said every team in the museum was involved in organizing the festivities.

“The party planning efforts fit the size of how beloved Claude is, and also maybe just the massive size of how big he really is,” Peach said. “He’s turning 30. It only seemed appropriate to celebrate him for 30 days.”

The museum’s Claude-ification began early this month with Claude-themed giveaways and programs, with a public art installation, crafts and visuals. The festivities also included a city-wide Claude plush toy hunt and partnerships with the San Francisco Public Library, California College of the Arts and the WNBA team the Golden State Valkyries.

Kids showing the love for Claude the albino alligator on his 30th birthday. (Margaret Attridge/Courthouse News)

Sunday morning, children and adults lined the perimeter of Claude’s swamp enclosure. Many donned party hats or alligator-shaped headbands or clutched a Claude stuffed animal, hoping to catch a glimpse of the reptile in motion.

“Alligators, they’re ambush predators. So their best trait is to sit around and wait for things to happen around them,” senior biologist Holly Rosenblum explained. “I think most visitors who come to visit would agree with that because he spends a lot of time sitting around.”

Freida, age 7, wore a Claude headband.

“My mom worked here for 16 years; we visit him every year,” she said. “He’s albino, the only albino in his family. He’s really special to me.”

Visitors August and Morgan McVey described their approach as “go big or go home,” deciding on all-white outfits topped with homemade party hats.

“If we’re gonna go to his ‘birthday,’ we might as well go to his birthday,” Morgan said. “Treat it like a birthday party.”

California Secretary for Natural Resources Wade Crowfoot said that the celebration was “certainly the only 30-year-old birthday party for an alligator I’ll ever go to.”

Crowfoot added that “amplifying the role of the academy protecting nature in a way that’s fun” is what brought him and his 11-year-old daughter there from Sacramento.

Longtime museum member Michele Bultman Tracy, said she had been coming to visit Claude for about 15 years.

“You can’t think of the museum without thinking of Claude. He’s the first thing we see when we come,” Tracy said.

San Francisco Mayor Daniel Lurie talked about the impact the museum had on him as a child and his commitment to local organizations.

District 7 Supervisor Myrna Melgar lauded the museum’s efforts as the Trump administration is slashing federal agency budgets. As of June 2025, the museum has lost more than $400,000 in federal grants, with $1.7 million at risk.

“Right now, we have a bunch of people in our country who are trying to convince us that science is not important, but to all the folks here, you are one of the most amazing science research institutions in our country, and science is the reason Claude is here,” she said.

In an interview with Courthouse News, Melgar said that the Board of Supervisors will support the museum through “difficult times.”

“We will do what we can to keep it going through these times where people are denying science and climate change. We will do what we need to do to make sure that it survives,” she said.

The celebration continued with a twist on the classic “Happy Birthday” song a day early — he officially hatched Sept. 15.

“Singing him ‘Happy Hatch Day’ was important,” Morgan McVey said. “That’s kind of of our biggest thing is just getting to come see him, doing our pilgrimage.”

Then came Claude’s cake, which Rosenblum described as alligator friendly.

“It involved a lot of items that we feed into the swamp, not just for Claude, but actually for our turtles and for the fish. So things like different pellets, some peas. There were some small fish in there. And then to literally put the icing on the cake, they actually put some krill in a blender to make the pink frosting edges. They went all out,” Rosenblum said.

Biologists weren’t sure Claude would eat the delicacy.

“Dropping a cake into his enclosure with a bunch of people in the building without him being in the correct station and getting the correct audio commands is really different than how he’s normally fed,” Peach said. “So, in the trials where they’ve kind of lowered the cake into his enclosure, he has not noticed the cake a ton. However, his snapping turtle roommates have noticed and have been thrilled.”

When the moment came, onlookers cheered as Claude chomped down before abandoning the cake to his friends. The official party ended with a human-safe cake for Claude’s keepers — in the shape, of course, of the birthday boy himself.

“It’s been really exciting to see the community come out and support Claude and celebrate him on his hatch day,” Rosenblum said. “He’s a really special alligator and a great ambassador for alligators.”

Peach said, “I often refer to him as a blank slate that people can project their pride and joy onto. I think he has become that for San Francisco.”

For some guests, Claude is a museum highlight.

“I’m a big fan of him. He’s just a little freaky guy. He’s weird, he’s interesting, and just watching him float is really fun. It’s just the splayed legs. He’s a great mascot,” August McVey said.

For others, he represents something more.

“The ethos of San Francisco is to welcome everyone who is a little different, who doesn’t fit in where they were born. He’s the perfect symbol,” Melgar said. “He means something to people, to those of us who are a little different.”

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