These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
And how! Sung in Inupiaq, the translated lyrics are a perfect match to what was going on.
Not to mention that Phil Collins also worked on the music!
Fridge Horror: At the lack of a "Fridge Sadness" trope; a bear's lifespan is around 25 - 35 years, meaning that when we start out the movie by seeing Denahi as an old man, Kenai and Koda (and Nita) are all long dead.
They're essentially transformed spirits, not actual bears. Kenai and Nita probably would live normal human lifespans, but it's still Fridge Horror: Koda won't.
Also remember that this is the Ice Age: normal human lifespans wouldn't be, on average, much longer then a bear's.
Watch that word 'average'. Infant mortality in older times could be brutal but if you made it past 18 you could live to see 60+.
I Knew It: How many didn't see Nita's transformation into a bear at the end of the second film coming?
Needs More Love: Seriously, there are still people like Jesu Otaku who still express pure dislike for the film while others like Doug Walker are at best indifferent. It might not be Disney's deepest and darkest plot, but it's packed with Aesops about... you guessed it... Love. It is nowhere near their worst production.
The Scrappy: Koda can get awfully annoying - but he's kind of supposed to be, like a little brother would be.
Somewhere A Mammalogist Is Crying: So it's apparent that Kenai is one ridiculously weak bear for having troubles wrestling a human, in both the original (Denahi) and sequel (Atka). In real life just a pounce of a grown bear's paw is enough to knock the average man unconscious, and don't even try to think you can outmuscle one; err.. you can't.
Kenai is supposed to be a young bear, not a full grown one. Although, a half-grown bear would still make for a frightening opponent.