Bear #910: Katmai's Unlikely Matriarch & The Heart of Fat Bear Week 2026

As the crisp Alaskan air begins to hint at the coming winter, a familiar buzz is building across Katmai National Park and Preserve. It’s almost time for Fat Bear Week 2026, and already, a formidable contender is drawing significant attention: Bear #910. This impressive female brown bear, an Ursus arctos by scientific classification, isn’t just known for her sheer size as she packs on the pounds for hibernation; she's got a story that’s truly captured the hearts of wildlife enthusiasts and naturalists alike.

We first laid eyes on #910 back in 2019, a relatively young bear finding her way along the salmon-rich Brooks River. She’s often been seen with her sister, Bear #909, a testament to the strong social bonds some bears form. Throughout 2023 and 2024, it wasn't uncommon to spot them fishing side-by-side with their respective cubs, a seemingly idyllic picture of ursine family life.

But what truly set #910 apart, etching her into the annals of Katmai lore, was an act of profound, almost unbelievable compassion. Sometime between mid-August and October of 2022, she adopted one of her sister #909's cubs. You heard that right – she adopted a cub that wasn’t her own biological offspring. This isn't something you see every day in the bear world, making her story a real head-turner. As naturalist Mike Fitz eloquently put it, it's a testament to the fact that "bears can form unusual bonds and display complex social behavior." Park rangers Christine Loberg and Sarah Bruce, too, have marveled at this rare occurrence, a behavior so significant it warranted a scientific paper published in BioOne in 2025.

Since that remarkable year, #910 has continued to thrive. We even saw her in what park rangers playfully called "beach-ready form" in 2024 – quite the svelte figure for a bear! But now, in the late summer and early fall of 2026, she's all about packing on the calories, getting ready for that long winter's nap. She certainly knows how to put on weight, and if you’ve followed Fat Bear Week before, you might remember her from last year, 2025, where she gave it her all. Sadly, she lost out to the mighty Bear #856 in the second round of voting. But that just means she's coming back with a vengeance this year, surely fueled by those memories.

While #910's story is one of heartwarming resilience and unusual maternal instinct, the harsh realities of life in Katmai are never far. Just consider the sobering incidents that unfolded recently. On a Tuesday, July 28th, an infanticide was witnessed, involving a mother bear, #806. Then, on a Sunday, August 2nd, one of Bear #335’s (also known as Jolly) spring cubs tragically perished. The suspected culprit? Another mother bear, though her identity wasn’t confirmed. These brutal events, though difficult to process, serve as a stark, visceral reminder of why getting fat is not just a competition, but an absolute necessity for survival here. There's no single, easy answer for why infanticide occurs – experts suspect a complex interplay of factors like food scarcity, territory disputes, and sometimes, even the struggle for dominance, as Mike Fitz points out.

It's within this dramatic backdrop that Fat Bear Week truly shines. Scheduled to kick off at the end of September, it's so much more than a fun internet contest. It’s an incredibly clever way to engage people with the vital ecosystem of Katmai, highlighting the incredible abundance of salmon in the Brooks River and the sheer tenacity required for these magnificent creatures to survive. It's about celebrating their journey, from their lean spring bodies to their impressive pre-hibernation bulk, and appreciating the wild, untamed beauty of Alaska. Each vote cast is a small act of connection to this incredible natural world.

So, as Fat Bear Week 2026 looms, all eyes are on Bear #910. With her compelling story, her proven ability to bulk up, and perhaps a little bit of unfinished business from last year, she’s certainly one to watch. Will her unique blend of strength and compassion be enough to secure her the crown? Only time, and many, many salmon, will tell. Get ready to cast your vote!