Yeah, that's what I think too. Something about the rings. They're Borromean rings. Both in the chapter art and in Lizzy's description.
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In the wake of 7odd & Grog talking about ant trails, I noticed that Puck very specifically mentions that humans can also follow a trail. In that same exchange I got the impression that the "biter funk" in the alley they walked down was particularly strong. Not sure if that indicates that it was an intentionally done thing by Randy et al. Or maybe that was an indicator that more zombies were there...
I wonder if the chemical and the typical biter smell are supposed to be intertwined? From Season 1, we are given info that regular Zs smell like shit and very strongly. One could say that it's the normal state of hygiene after a while. But I think it happens pretty quickly (no facts on this at the moment) and its a result of the change to Z. I say all that because I seem to recall that methane metabolizing is a big part of formic acid in the human body. And I think that the smell of methane leaving the human body could have a shit-like aroma.... But I'm not an expert on the chemistry so I may be way off on this.
It is possible. Most animals make carbon dioxide instead of formic acid. Ants and some insects use it to communicate and sometimes in offense/defense. What is nice about it is that it is calorically cheap, only one carbon and does not waste nitrogen or sulfur.
can i just say that @ ~20min of 39-1, Puck's tirade against Michael, after Michael just starts heading after Randy without backup... is just fantastic. the tone, the words, the delivery was just great. really made the entire chapter, for me.