corrigendum and incredible cave
As you wrote me, Carolina, the folded bird is a japanes crane (Kranich in German). How could I forget, …sorry.
About the incredible cristal cave in Mexico
Here is an interesting link about a huge cristal cave in Mexico. Just as an information. Unfortunately the cave is not accessible for public. and as I understand it will be flooded as soon as the work around in the mines will be finished. It looks so incredible and wonderful.
Have a look on the bbc page, the link is:
http://news.bbc.co.uk/2/hi/science/nature/8466493.stm
or on the naica page
