Hello. Since I am new to this forum (and somehow to the game on the Palm), and since I am italian, I'd like to understand a message sometimes appering on the display. After performing a "search" I still haven't found any answer to my question... so here it is:
Following a child running around on the screen, many times I've noticed that he/she is going in a particular place; when this happens, a text appears, saying "Nature is calling!". What does it mean? It seems to me that the child may be performing a "biological act", but I am unsure about its strict meaning.
Thank you for any help (although the question may be very stupid...!)

The question isn't stupid at all! There are many idioms in every language that native speakers take for granted, but are not clear at all to people who don't possess the same degree of familiarity. You are correct about your assumptions....the phrase has its origins in the urges that come from natural body function, thus "Nature is calling." There are references to that behavior in the forums, but they typically are phrased differently, using terms such as "peeing!"

Uh, ah... Ha ha ha, I thought it could be that, but I wasn't sure. Many thanks for the fast reply.

PS: A direct and literal translation from english to italian, would have given an identical meaning, but the fact is... I wasn't sure about the meaning of the phrase, may it be in english or in italian...! "Nature is calling" (in italian "La natura chiama") at least in this case, means exactly the same... Thanks a lot!