system
Given the following post, respond as if you're commenting on Reddit:
human
[General Zombie Apocalypse] With all of humanity zombified, how would animal life on Earth adapt?

Let's assume for the purposes of this apocalypse that these Romero zombies, in the absence of humans to attack, will shamble and maul any animals close by. The zombie virus doesn't reanimate animals if said animal was bitten, but the virus will kill them, and will also kill the animal if zombie flesh is ingested.

As the years pass ( zombies won't normally rot because microorganisms won't have anything to do with them ) how will animals' behaviours and physiologies change?
gpt
Did you have any specific species (or location, or time frame) in mind?

In general, any animals that are friendly to humans (or any predator that would prey on Zombies) would have a noticeable drop in population, until surviving members either adapt to this new member of the Ecosystem or die off. Domesticated or near-domesticated animals that have been bred past the point of self sufficiency (Pets, farm animals and the like.) would see potentially irrecoverable drops in population. Animals that are used to avoiding humans and are capable of adapting to formally human populated areas (rodents, small mammals and the like) would see dramatic increases in population. These populations would, of course, not be sustainable, but in the short term would lead to increases in the predators of these animals. The cycle continues. Life, uh, well, you know what it does.