The other day Wolf(5) was showing grandma RedRemover (on bubblebox.com, btw he's done all the levels and the adults have had problems with it!!!). He clicked on level 1 and said to her, "Let me show you level 1 so you can get an idea of the concept." Grandma was a bit stunned by that...

Bear(2.5) was watching us talk about the ants invading our house. He told us quite matter-of-factly, "Ants are a type of bug." Now the ant - bug concept didn't phase me, but even I did a double take at his using the word "type"!