[TuxKamen]

This is for HowardC: The new zombies were formed because, basically, the heroes intentionally infect new beings they come across with super powers. It goes back to Reed Richards believing the virus was the next step in evolution. The same thing happened on the Skrull planet that the regular Earth FF ended up on (Black Panther, Storm, Torch and Thing), where the zombies infected four Skrulls that had the original FF's powers (including the Zombieverse's version of Lyja, Torch's Skrull wife).

It surprised me from the first panel that the zombies, for the most part, aren't wearing their Galactus gear... Hulk's still wearing the Galactus skirt, Wolvie's got a purple glove and Cage has a purple sleeve, but that's all I see. Also, note Spidey's two-toed look on his new leg? As for why they didn't try regrowing their limbs and flesh, maybe it wasn't that much of a priority for them at the time?

I think it's established that after they eat for a while, the Hunger DOES diminish some and the zombies are able to think semi-clearly, which is probably when they were able to come up with the grafting.

And that's all I can think of for your comments.

As for the eyes, it shows other non-cosmic zombies having blank eyes, also, just another identifier along with the lipless look.

Come to think of it, zombie vomit might explain why Spidey's mask ripped so easily in Dead Days.