Yes, I learnt that when I was writing this post... its just fascinating :)
Btw congrats on the huge success of the animal shadow photo contest! I just checked that post and was surprised by how many people have already joined :) Hopefully, all of the entries were really taken by those people though, I am not that sure with some...
RE: Wildlife of Canary Islands: Monarch Butterfly, one of world´s most beautiful and remarkable butterflies