Hmmm well i have several possible ones:

 

Landscape Architect

Something Medical or in Biology

Botany or Conservation related.

Marine Biology / Reef Conservation and Coral Propagation

Orchid Grower

 

I have done things i several fields, I have worked for a year and a half in Stream rehab / Conservation in Northern California near the Klamath River.

I also have worked in plant nursery both retail and educational.

I have a bunch or Orchids booming right now behind me.

I have had 2 Reef Tanks with Hard coral and all kinds of reef cirtters.