Snow on the Hallelujah Mountains?

[Human No More]

Originally Posted by Zai-en-ken

It is probably cooler up there, but if large reptiles (and therefore presumably cold blooded animals) like Ikran and Toruk are living up there in high numbers, it's gotta be pretty warm most of the time.

I guess they would be endothermic because they aren't reptiles.




As for ice, there IS ice visible from space at the very north pole, but it's a small area.

[Raiden]

Originally Posted by Human No More

I guess they would be endothermic because they aren't reptiles.




As for ice, there IS ice visible from space at the very north pole, but it's a small area.

WTF?

If they aren't reptiles, then what the hell are they?

They have what look like scales (can be seen when Jake dismounts the Toruk @ the ToS), they have teeth, they lack beaks, they don't have hollow bones, they don't have feathers.........if anything they are Pandoran equivalents of Earth's ancient Pterosaurs.

[Ashen Key]

Originally Posted by Zai-en-ken

WTF?

If they aren't reptiles, then what the hell are they?

They have what look like scales (can be seen when Jake dismounts the Toruk @ the ToS), they have teeth, they lack beaks, they don't have hollow bones, they don't have feathers.........if anything they are Pandoran equivalents of Earth's ancient Pterosaurs.

We...don't know that they don't have hollow bones. And to be honest, I don't see how else they get up there if they DON'T have hollow bones. In addition, they are not from Earth, so they don't have the same species groups.

Originally Posted by ISV Venture Star

Pandora has lower gravity (0.8g) than the Earth. This means that the scale height (see link below)

Scale height - Wikipedia, the free encyclopedia

is greater. So you need to be at a higher altitude to see a big change in pressure (and also temperature) than is the case on Earth. Higher values of T would also increase H. OTOH, the Pandoran atmosphere has a fair amount of CO2, and that would mean that the average molecular mass (M) of the atmosphere is higher than on Earth, decreasing H. Hmmm.

...I always forget about the gravity thing. (Possibly because aside from Quaritch mentioning it, we don't see ANY effect of said lower gravity, *grumbles*). That makes sense.

[ISV Venture Star]

Have just found out that the lapse rate is what it's really all about.

Lapse rate - Wikipedia, the free encyclopedia

But again it relates linearly to gravity. Lower g, lower lapse rate.