Adaptation To A Cold Environment

The Day Of Their Return.

In 2, Ivar Frederiksen shivered and his gunstock felt cold.

In 4, we learn more about how Aeneans have adapted to their cold planet:

"...chill smote through his garments. He hardly noticed. The body of an Aenean perforce learned how to make efficient use of the shivering reflex." (p. 101)

Also, Ivar's canteen has to be:

"...well insulated against freezing..." (ibid.)

For once, there is no wind and the quiet is:

"...so deep that it was as if he could hear the planet creak from the cold." (ibid.)

Aeneas is maybe like Mars when the latter was still habitable. Clothes have heating units.