You should definitely update your friends on social media now that you know.
I think it's a shame that a teacher would mislead a child the way yours did.
Having worked with penguins (the flightless ones) though, I have to say that while they are funny they didn't strike me as the most interesting or intelligent birds ever. I was quite disappointed, they regularly die by getting stuck in seaweed lying on the beach, and just keeping trying to walk straight until they get exhausted and fall. You get more meaningful interaction with a crow or even a common blackbird.
Also, the confusion is greater from the fact that the Grand Pingouin (extinct in the XIX century) did not fly
I had a really good teacher who would sometimes tell us particularly absurd things to see if we would figure it out and contradict her. When we did she would remind us that we should think for ourselves and not accept at face value claims just because they were presented by an authority figure.
Shouldn't you be distrustful of school teachers?
https://www.youtube.com/watch?v=5OB8EYKXAys
https://www.youtube.com/watch?v=Cky5SQCeVJc
Based on this I would definitely distrust penguins, because this and this is definitely a reason for this.
Coincidentally, a few days later the topic of Stonehenge came up in class and my teacher asked if anyone knew anything about it. I immediately raised my hand and, when my teacher called on me, smugly announced, with full sincerity, that whales had built it.
She simply said, "No." Then turned to the next raised hand.
Edit: I can now confirm that my teacher was simply not informed by the latest research at the time:
Ouch. Now I feel really old...
So I have also been somewhat distrustful of Penguins, especially those appearing in AI teaching examples. Tweety actually appeared in a load of other AI examples, although I can't recall his specific escapades now.
"The bastards destroyed the entire spaghetti crop last year. I don't see why anyone still fawns over them."
Did he happen to show it to you on April 1st? xD
I've listened to it 4 times so far, it's amazing.
Not sure if this is the best clip:
"At the time (1957) spaghetti was relatively little-known in the UK, so that many Britons were unaware that spaghetti is made from wheat flour and water; a number of viewers afterwards contacted the BBC for advice on growing their own spaghetti trees."
I doubt many Britons know that now to be fair. I could easily imagine this jape catching people out today.
Unfortunately, for a brief period of my childhood, I was under the assumption that penguins could indeed fly. By the time I had uncovered my teacher's subterfuge, I had already made a fool of myself by publicly positing that such penguins existed.
Admittedly, my teacher was only playing a prank on me -- but ever since that incident I have been distrustful of penguins. I genuinely hope that one day I can overcome this irrational view and appreciate the flightless birds.