There was a little
Araucaria araucana just planted when I started studying forestry. Five years later the tree was around 10cm (4in) taller. They are beautiful trees, which take a while to grow. Sometimes it is very dangerous to walk under one of them, because of the size of the female cone (10-18 cm long by 8-15 cm wide).
This is a picture of a
young tree, with branches starting from very close to the ground, while
these are some adults, which well explain the 'monkey puzzle' name. Conifers.org contains some additional
botanical information.
Araucarias are dioecious (from greek for two houses, this is a good word!) trees, meaning that they have separate female and male flowers in different trees. So, there are he and she araucarias.