So I have what's basically an alternate realistic version of Hyness from Kirby Star Allies's species. I have designed them as furry blue humanoids on a cold planet. There are many large predators dwelling with them in the frosty forests. Those chameleonish eyes help a great deal. But I'm focusing on the nose. It looks a lot like a proboscis monkey's. I know proboscis monkey noses can make loud sounds, but would the shape assist with warming air as they breathe it in like a reindeer's nose does? I'm wondering if the same nose structure would allow for both functions.
How does the nose's inside structure need to be like?
Also would bigger ears be not as good in cold climates?