Do zombies poop?

[Aoi Magi]

In all the games I play, eg, dead island, dying light, boy those fuckers can run if they want to!

The commonly accepted theory is that fresh zombies run fast and they gradually become slow shambling walkers as they decay and muscles weaken.

Hmm, now that I think about it, if their muscles weaken too much, they shouldn't be able to hold back their poop. I think the weakest zombies/walkers should be eating and shitting at the same time, huh!