Gorillas ready for harvest into 3D?

[Stranger]

abstract thought is simply the ability to build a mental representation of external reality in a way that allows it to be manipulated internally (mentally) rather than only externally. It seems to me that some significant degree of this is present when the animal is able to recognize what a trap is and figure out what is required in order to deactivate it -- also to not only choose to avoid it, knowing what it is, but to recognize that others could get caught in it and decide to destroy it. As to whether it's sufficient to harvest into 3D - you're right, that is hard to say. But still very neat.