Thank you, LDW, I love this game. Make a II as soon as possible.
I've solved all the puzzles, and everything is fully researched. I have more than a 1.000.000 food but very soon there will be no more people to feed! There is still something mysterious about Isola here at the end of the game:
Mystery 1.
My population has reached approx. 90 villagers and I can't get them to breed anymore! That is, they still go indoors but they have no babies. I guess it has something to do with housing, but how can I make them build new huts by themselves?
Mystery 2.
Why are the villagers still so curious about the cactus? Like I mentioned before there are no more puzzles to be solved, and I just don't get it.....
Mystery 3.
The cave - it contains fresh berries like someone lived there just recently... Why do I get this information if there is nothing more to it? Is this another mystery and do you have any hints?
I will appreciate any hints and clues or solutions that you might have on these 3 mysteries.

90 is the maximum villagers you can have at once.

Its just like a good movie, leaves the option open for a part 2 or expansion kits

when villagers are studying the cactus they increase they healing skills (note it is called medical cactus) hope this helps