I remember my parents talking about their very first trip to the rainforest with a group from the Milwaukee Public Museum - a long long time ago. I also remember going to the museum and seeing the (then) new display full of leaves, bugs, butterflies, stuffed animals, and some semi-creepy dioramas of scientists studying nature and natural things.
I've always loved the idea of making science part of my life - in fact if I wasn't making art, I'm sure I'd be doing something science-y. Here are some leaves. From various jungles and forests. All combined into one place for you to study.