Brown Bear said:

When it gets this cold, all you can do is sleep and wait until it gets warmer.

That's probably the most bear-like thing Brown Bear has said this whole comic...

Also, that next-to-last panel makes me think of the old expression that it's a "three dog night" (or four or two or whatever...), but I wonder how many dogs a Goji is worth?

That fourth panel is absolutely adorable.

I'm reminded of the scene from "The Martian", where he digs up the plutonium thermopile and puts it in the cabin of the rover to stay warm without using power, radiation be damned.