Snowflake the Polar Bear Updates

Published June 29, 2025. Updated May 1, 2026.

Supporting positive welfare at every stage of an animal’s life is integral to the Zoo’s mission. One of our oldest residents is Snowflake, who at age 29 is the second oldest polar bear in an accredited facility in the United States.

Our animal care team carefully monitors her for conditions associated with advanced age to increase her quality of life. Snowflake is currently treated with medication for both a cardiac issue and a chronic skin allergy.

Providing opportunities for choice and exerting control in daily life is also a vital component of her positive welfare. This is why guests may not always see Snowflake when they visit. Her off-exhibit area is divided into several spaces that can be adjusted to offer different environments and enrichment experiences. These comfortable inside areas help keep Snowflake cool in summer and avoid any physical or behavioral strain.

As we navigate the challenges of Snowflake’s aging, we will be sharing our animal care staff’s daily efforts to support her well-being in her golden years. Regular updates will be pulled from actual zoo email communications so that everyone can appreciate the care she is being provided in our staff’s own words. Keep watching for updates!

Days of Our Snowflake’s Life

Our resident ursine superstar has been keeping things lively, from swims in her pool to curious explorations of her habitat.

March 13

Enrichment: Provided the bobbin, a blue ball, and a yellow ball at the Pier Town window to exhibit. Snowflake looked and sniffed. Snowflake also watched from Den 1 while ice was dumped into the rolling bin in the keeper space.  *VISUAL ACCESS ONLY*

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March 14

Enrichment: Bubbles at the Pier Town to exhibit window. Snowflake interacted with moderate success. *VISUAL ACCESS ONLY* Also provided a medium watermelon slurry ice treat in Den 4.

Training/Conditioning: Behavior: Soak re-work, verbal: Get in the tub. First session with adding a small amount of water to the tub (lukewarm). Snowflake shifted in with some initial hesitation but then seemed comfortable once in the tub. Since this was the first session with water added in, the focus was just on shifting in and out of the tub under stimulus control rather than having a goal of sitting, which would likely not have set her up for success.

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March 15

Enrichment: Provided the large orange best ball from the tunnel while Snowflake was swimming. She looked at the item. *VISUAL ACCESS ONLY*

Behavior: Snowflake took a short swim in the exhibit pool at 8 a.m. Once out, she rubbed on the exhibit rock work. Around 8:20 a.m., she got back into the exhibit pool and played with enrichment toys and leaves while swimming.

Animal Care: The top of Snowflake’s right ear appears to be raw. There was a small amount of dried blood during the first feed.

Training/Conditioning: Behavior: soak tub. Verbal: “get in the tub,” “let’s go.” Snowflake got into the empty tub. She sat successfully/fully, until she was given a fish, then she stood up. I had her hold her sit longer, before shifting her back to Den 1. I fed most of her capelin 3rd feed while she was sitting in the tub. I did not reinforce her unless she was in a seated position.

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March 16

Diet: Snowflake had a lower appetite at the first feed and refused a few meatballs with applesauce. She also licked watermelon off one meatball but spit out the rest. Later in the feed, she accepted meatballs and sweet potatoes for meds.

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March 17

Medical Note: Snowflake has started doing some rubbing and scratching on the rock work (beginning of seasonal shedding and possible allergies). As of today, she had one dime-sized raw rub mark at the base of her RIGHT ear as well as small rub marks on either side of her head. Also, Snowflake has some very slight trembling of her moth and lips this morning during the first feed. This was most noticeable when she would open her mouth. This appears to be a seasonal behavior, as we have noted this in past years as well.

Enrichment: SNOW!! – On all exhibits/shade structures/sea lion net.

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March 19

Behavior: Snowflake swam two times in the morning.

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March 20

Enrichment: Provided iceberg toy on the exhibit pool ledge with produce underneath it. Provided pom-poms from Pier Town windows. Snowflake interacted highly successfully.

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March 22

Animal Care: Snowflake weighed 513 lbs. (-10 lb. decrease from her previous weight)

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March 23

Behavior: Snowflake was nervous before the first and second feed, pacing and taking longer to come to station. She looked in the porch area before coming to Den 1 to station for the first feed. At the end of the second feed, she jumped up to a loud noise from outside (the previous night she was locked in holding/porch due to severe weather warnings – there was a thunderstorm and strong winds.)

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March 27

Enrichment: Provided motorized lizard toy on the tunnel window while Snowflake was swimming. *VISUAL ACCESS ONLY* Watermelon chunks given for vaccine smell de-sense training session.

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March 28

Behavior: Snowflake was observed rolling in her hay in Den 4 this morning; fully on her back and splaying her legs. She appeared to be very comfortable.

Medical Note: Snowflake’s urine was very potent today. This can indicate a hormonal shift.

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April 4

Enrichment: Large red ball and lizard toy in the tunnel. Snowflake looked and blew bubbles. *VISUAL ACCESS ONLY*

Medical Note: Snowflake currently has small rub marks at the base of both ears, both sides at the top of her head, and both sides of her neck. These are the typical areas that she generally gets rub marks at this time of year.

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April 5

Enrichment: Trainers wearing bunny ears at various feeds. Provided the following Easter-themed enrichment in various locations around the exhibit: many small ice piles, 6 applesauce ice treats, 6 watermelon slurry ice treats, 6 empty ice treats, produce (carrot slices and lettuce), XL cylinder toy (edge of water).

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April 6

Medical Note: Snowflake’s rear legs were stiff when standing after first feed.

Demeanor Type: Snowflake exhibited nervous body behavior, watching a truck beeping outside of the exhibit and walked towards it during a scatter from the roof while she was locked out of holding for cleaning.

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April 7

Medical Note: Snowflake did some light hacking after being offered a herring at the first feed. No other abnormal behavior was noted for the duration of the feed.

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April 11

Behavior: Snowflake went for a swim in the exhibit pool this afternoon.

Animal Care: Snowflake received less than 1/3 of her April Invermectin dose due to spitting out almost every medicated piece of food. She appeared very put off by the smell of the medication, even when masked by other smells/flavors. A new dose was requested.

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April 17

Diet: Only ate approximately half of the cod liver oil and threw away 0.5# of herring from the last feed due to appetite.

Medical Note: Snowflake was observed doing some hunched sitting and tongue flicking while on exhibit this afternoon.

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April 18

Medical Note: Snowflake was observed moving more gingerly throughout the day. This was most notable when walking on exhibit and while sitting down and standing up.

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April 20

Medical Note: Snowflake laid in a sploot position for the second feed in Den 4 and exhaled loudly when lying down for the feed. Her head was lower than usual and her right paw was tucked under her instead of being aligned with her left paw like usual.

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April 21

Medical Note: Snowflake received 100% of the West Nile vaccination through voluntary injection.

Training/Conditioning: Snowflake was highly hesitant to line up along the bars to target for this actual IM session. It’s possible the vaccine was more potent than the training syringe we had been working with in previous sessions, and this may have put her off enough to show some hesitation. She did follow through with a full target, and the vet tech took the opportunity to give her the injection. She was more reactive than during her last vaccination (2025), but was still willing to line up once more and briefly target after receiving the injection.

Enrichment: Provided a watermelon ice treat topped with watermelon slurry.

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April 23

Medical Note: Snowflake’s lower lip was quivering during the first feed when she was opening her mouth.

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April 24

Enrichment: Red ball at pier town to exhibit pool window. Snowflake interacted with high success. *VISUAL ACCESS ONLY* Also, teal iceberg floated out on exhibit pool with carrot slices.

 Behavior: Snowflake swam in the exhibit pool around 11 a.m. She then pulled a pile of hay onto the exhibit beach in the sunlight and slept on it for approximately an hour.

Animal Care: Snowflake was very active today. She spent a lot of time walking around the exhibit, her porch, and the dens at various times throughout the day.

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April 26

Enrichment: Soak tub in Den 2 filled with ice water with produce, 1 herring ice treat, 2 watermelon slurry ice treats, and 2 watermelon chunk ice treats. Snowflake interacted with high success.

Behavior: Snowflake was seen swimming in the exhibit pool at 10:20 a.m.

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April 27

Animal Care: Snowflake weighed 505 lbs. (d-8lb. decrease from her previous weight)

Previous Snowflake Updates