Noted. It'd be a shame to not need to eat. Sucks the joy out of life if you ask me. [He noticeably doesn't comment on the sleeping bit though. If people were able to go without less sleep they'd have time to accomplish so much more - at least that's what he thinks.]

They're sending us in small batches, aren't they?

[The Doctor was at the briefing but was he listening? Hard to say. He's also going to keep walking but has his eye more on the readings than anything else. It's only about several minutes later that he remembers they're meant to be doing. He beelines for a cluster of mushrooms that are releasing spores and he caps them in mid-air in a test tube.]

Hm? Maybe. Probably. This is a living organism with kilometeres upon kilometers of mycelium underground.