: On top of that, as an alien species the Pfhor aren't even in any Terran taxa
: to begin with. They're not actually insects, or reptiles, or birds. But
: they're certainly more more like arthropods (of which insects are but one
: taxon) than they are any other Terran taxa.
: Also I wanted to ask earlier, even making up such an intra-generation
: "evolution" out of nowhere, why insects-reptiles-birds? Reptiles
: didn't evolve from insects, and birds are not the only things that evolved
: from reptiles. ("Reptiles" is a problematic taxon in the first
: place, but I'm taking it here to mean all non-avian non-mammalian
: amniotes). Might as well suggest crustaceans-mollusks-cephalopods (because
: while most Pfhor are clearly crablike, the Hunters are much more
: clam-like, and the Enforcers and Tfear are more like upright squids,
: amirite?)
The crustacean analogy would definitely make more sense than reptiles or birds.
It even fits with the different Pfhor morphs; it's basically like a crustacean shedding its carapace and growing a new one. Even the Hunters wearing cybernetic armor makes sense here since it's like a hermit crab abandoning it's shell to use a glass bottle or a tin can as it's new protection.
Nevertheless, as I mentioned in my reply to VikingBoy, I think Bungie made it clear that the Pfhor are supposed to be analogous to insects.