Not only in America.I've seen and heard people teaching their pets to do 'tricks' since I can remember.Once again it is shown that our world has been dumbed down to the presence of intelligence within our animal cousins.Take Dolphins for example.They have the ability to heal using ultrasonics at a far higher level of accuracy than your best surgeon but a dog reacting to markings on a piece of paper..,Thats'Amayzing!?'..How about taking a look at all the talking cat home movies.And they learnt to do that all by themselves just like primates did at some time in our hominid past.

Being able to see through tissue is not impossible.Snakes do it all the time,but before you say 'we aren't reptiles or more specifically snakes,take a look at how many times eyes have developed along seperate branches of the evolutionary tree.Then ask why that has happened.Exsposure.