I am not very sure about this website because it just seems to be a bit far fetched. But just because I have been unable to train my moggies to do any tricks should not cloud my judgement on the subject.
yes....and they have good memories! i remember seeing a tv programme a while back where they managed to train fish to do (simple) tasks, and then measured how long it took for them to forget stuff. i can't for the life of me remember what it was......
Yes you can. My sister had a huge pond one time and regularly tapped the side when she had feed for them when they would come and take feed from her hand.