We get a brief moment of disbelief in season 9 when two walkers appear to be talking to one another. they turn out to be people wearing the skins of walkers to blend in. They're called "whisperers" as they communicate through gruff whispers as a way to mimic the groans of the walkers.

Whisperers aren't technically walkers, but besides them, more walker variants have been introduced. We've already seen throughout the show that some walkers appear more capable than others, being able to turn doorknobs or climb fences.

In a recent episode that pays particular attention to one walker in the intro, we see that walker return later in the episode, pick up a rock, and attempt to bash in the skull of a survivor with a hurt foot. The fact that zombies use tools more often now is cause for alarm. That, and it seems that these more intelligent variants are seemingly learning from the whisperers. It's likely that from now on, the threat of the walkers will no longer take a back seat to crazy cult leaders.

Many fans believe that Rick Grimes isn't dead, but that he was helicoptered away in hiding. He might not show up in season 11, which is supposedly the last season but we'll see about that, but if he does he has a lot of challenges to take on. With a sense of direction, the new walkers are much more capable when it comes to cutting off routes of escape, replenishing their numbers, and tracking survivors.

Catch new episodes of The Walking Dead Sundays on AMC.