Cool. And yes, a bit scary, but not all that surprising
I've always been a bit amused at how stupid many "scientists" think animals are. Especially there view of tool making and of reasoned response.
Two examples:
One of our foster dogs would look at a couch full of dogs for a moment, then run to the front door barking. She would then go through the dinning room and back into the living room and jump up on the now empty, warm comfortable couch. She did this several times, whenever she wanted up on the couch. A bit scary, that dog.
One of our own dogs knows "upstairs," which means we're going to bed, and also knows "outside." We would always give him the choice, saying, "Upstairs or outside?" which meant basically, do you need to go out before we go upstairs. Each night he would choose one or the other, looking at the hall to the stairs or at the back door for a moment, then he would run one way or the other.
Still, scientists are consistantly suprised at inventive or reasoned behavior in animals even though you can see it every day in your pets.
Cliff