Attack on Titan: Shingeki no Kyojin

[David75]

Non-Eren titans appear out of nowhere, without anyone spotting anything beforehand.

If Titans are all transformed beings, maybe we can think of other livning being thant humans?
Like rats, frogs etc? That could explain some of the abnormals behaviour.
That could also explain why they can transform so near to the walls. A human would be easier to spot, even from those high walls.

[Kraco]

Non-Eren titans appear out of nowhere, without anyone spotting anything beforehand.

If Titans are all transformed beings, maybe we can think of other livning being thant humans?
Like rats, frogs etc? That could explain some of the abnormals behaviour.
That could also explain why they can transform so near to the walls. A human would be easier to spot, even from those high walls.

They manifest the behavior of no higher animals, like mammals. Most of the titans behave like some stupid insects or fish.

If humans developed Titans to unify humanity, it was an experiment gone wrong on a godly scale. Humans are next to extinct, assuming these really are the only humans left and the denizens of this city aren't just frogs in a well. Though it can't be denied that Eren's ability does suggest the origins must be related to humans and control was probably an intended attribute from the beginning.