"Yeah, and I'd like to be on my way out of them by oh-nine-oh-one," says Grace. "Hexapedes (http://james-camerons-avatar.wikia.com/wiki/Hexapede) do a good portion of their mating before breakfast."

As Evans and Hegner move to get their gear in place, Grace stays where she is, fishing through her pockets.

"Besides, a lot can go wrong in a half hour," she adds pointedly.