Grizzly 399 is arguably the most well-known grizzly bear in the world. Grizzly became the most well-known grizzly bear for these reasons. Her age, her children, and her proximity to humans.  Let's take a look at each of these reasons.

Grizzly 399, born in 1996, has turned 26 as of 2022. While the brown bear lifespan is 20-30 years many bears die before this due to factors including, starvation, springtime avalanches, illness, injury, and predation. Grizzly 399 has been able to not only avoid all of these dangers with her close proximity to humans but also survive to what would be approximately 70 years old in human years.

Grizzly 399 has had many cubs throughout her years, having a total of 22 children and grandchildren. Grizzly 399 until recently had her 4 cubs accompanying her, however, they have since gone out on their own.

Grizzly 399, unlike most brown bears, is seen very often by the public and photographers. The reason for this is how close she lives to humans. Grizzly 399 lives in the Grand Teton National Park, and instead of being hidden in the Forrest, she often goes close to the roads and adapted to living in this area. It is speculated that the reason for this is that one of the cubs she once had was killed by a male bear so she stays away from those areas to protect the cubs.