Lily the hippo in Woodland Park Zoo’s hippo habitat. (Photo provided by Woodland Park Zoo)

Lily the hippo in Woodland Park Zoo’s hippo habitat. (Photo provided by Woodland Park Zoo)

Woodland Park Zoo’s ‘longtime favorite gal’ Lily the hippo has cancer

The 45-year-old hippo is in palliative care due to an inoperable malignant tumor in her mouth.

SEATTLE — Lily, a 2,700-pound hippo, isn’t sporting her usual cheeky smile.

Neither are her fans.

The 45-year-old hippo is in palliative care at Woodland Park Zoo. Her cheek swelling is due to an inoperable malignant tumor.

There is no clear life expectancy at this point for Lily, considered a geriatric hippo. In the wild, hippos live about 40 years, but in zoos can reach their 50s.

A zoo spokesperson said Lily is believed to be one of only two hippos in Washington state. The other is Lupe, her habitat BFF at the Seattle zoo.

Lily, whose full name is Water Lily, has called Woodland Park home since 1979, arriving at age 1 from her Houston Zoo birthplace. Lupe, a 25-year-old female weighing 2,900 pounds, came in 2003 from Disney’s Animal Kingdom in Florida. Hippos are social animals and need companionship as well as lots of food and water.

A recent medical procedure on Lily involved about 30 zoo staff and a veterinary dentist who specializes in mega mammals. Lily has fibrosarcoma, a type of cancer of connective tissue.

“This diagnosis was not the result we had hoped for, but we are glad that now we know and can create a plan to provide her the best possible care,” Dr. Tim Storms, zoo director of animal health, said in a press release. “We are exploring the possibility of surgery, radiation, chemotherapy, and other treatments used in humans and other animals. Unfortunately, these options are difficult in Lily’s case because of her size, the location and size of the tumor, as well as the risk of repeated anesthetic procedures. Our primary focus will be to ensure she has the best possible care and quality of life for the time she has left with us.”

It was Lily’s first dental surgery for swelling suspected to be caused by a tooth problem.

“Since we’ve shared the news about Lily, we have seen an outpouring of love and support from the community. She is truly beloved,” zoo spokesperson Craig Newberry said in an email. “At this time, there are no special events planned for her.”

The zoo held a celebration for “Birthday Queen Lily” when she turned 45.

News of Lily’s condition generated a big response on social media.

“Such a longtime favorite gal,” one poster wrote.

Said another: “Hippo immobilization is no joke. Props to zoo staff involved and setting her up with palliative care.”

Woodland Park Zoo is a popular spot for field trips for Snohomish County schools and others in the state.

Lily’s surgery last week left her with a visible surgical wound on her cheek.

Zoo visitors may notice it when they see Lily, but it doesn’t detract from her enormous beauty.

Andrea Brown: 425-339-3443; abrown@heraldnet.com; Twitter: @reporterbrown.

Talk to us

> Give us your news tips.

> Send us a letter to the editor.

> More Herald contact information.

More in Local News

LifeWise local co-directors Darcie Hammer and Sarah Sweeny talk about what a typical classroom routine looks like on Monday, April 14, 2025 in Everett, Washington. (Olivia Vanni / The Herald)
Everett off-campus Bible program draws mixed reaction from parents

The weekly optional program, LifeWise Academy, takes children out of public school during the day for religious lessons.

Protesters line Broadway in Everett for Main Street USA rally

Thousands turn out to protest President Trump on Saturday in Everett, joining hundreds of other towns and cities.

An EcoRemedy employee checks a control panel of their equipment at the Edmonds Wastewater Treatment Plant on Thursday, April 17, 2025 in Edmonds, Washington. (Olivia Vanni / The Herald)
Edmonds launches technology to destroy PFAS

Edmonds is the first city in the country to implement… Continue reading

Over a dozen parents and some Snohomish School District students gather outside of the district office to protest and discuss safety concerns after an incident with a student at Machias Elementary School on Friday, April 18, 2025 in Snohomish, Washington. (Olivia Vanni / The Herald)
Parents protest handling of alleged weapon incident at Machias Elementary

Families say district failed to communicate clearly; some have kept kids home for weeks.

Irene Pfister, left, holds a sign reading “Justice for Jonathan” next to another protester with a sign that says “Major Crimes Needs to Investigate,” during a call to action Saturday, April 12, 2025, in Arlington. (Aspen Anderson / The Herald)
Arlington community rallies, a family waits for news on missing man

Family and neighbors say more can be done in the search for Jonathan Hoang. The sheriff’s office says all leads are being pursued.

Mary Ann Karber, 101, spins the wheel during Wheel of Forunte at Washington Oakes on Tuesday, April 1, 2025 in Everett, Washington. (Olivia Vanni / The Herald)
Lunch and Wheel of Fortune with some Everett swinging seniors

She’s 101 and he’s 76. At Washington Oakes, fun and friendship are on the menu.

Everett Music Initiative announces Music at the Marina lineup

The summer concert series will take place each Thursday, July 10 to Aug. 28 at the Port of Everett.

Jordan Hoffman-Nelson watches the store cameras for a couple hours each day, often detecting 5 to 10 thefts in a single sitting. (Aspen Anderson / The Herald)
At a Lynnwood thrift store, rising shoplifting mirrors larger retail crime surge

Employees at Bella’s Voice remain alert for theft on a daily basis. They aren’t the only ones.

Connect Casino Road Director Alvaro Gullien speaks at an Everett City Council meeting to share community thoughts regarding affordable housing and preventing displacement of those that live along Casino Road on Wednesday, April 16, 2025 in Everett, Washington. (Olivia Vanni / The Herald)
How will Everett’s comprehensive plan work in Casino Road?

Residents in the diverse, tight-knit neighborhood want “Investment without displacement.” The city’s plan will help achieve that, staff say.

Henry M. Jackson High School’s FIRST Robotics Competition championship robotics Team 2910 Jack in the Bot on Thursday, April 24, 2025 in Mill Creek, Washington. (Olivia Vanni / The Herald)
Mill Creek robotics team celebrates world championship win

The team — known as “Jack in the Bot” — came in first place above about 600 others at a Texas world championship event last week.

Trees and foliage grow at the Rockport State Park on Wednesday, April 3, 2024 in Rockport, Washington. (Annie Barker / The Herald)
Washington Legislature approves hiking Discover Pass price to $45

The price for a Washington state Discover Pass would rise by $15… Continue reading

The Washington state Capitol on April 18, 2025. (Photo by Jacquelyn Jimenez Romero/Washington State Standard)
Parental rights overhaul gains final approval in WA Legislature

The bill was among the most controversial of this year’s session.

Support local journalism

If you value local news, make a gift now to support the trusted journalism you get in The Daily Herald. Donations processed in this system are not tax deductible.