I am not sure how accurate these various suggestions and examples are but we hired a guide that was very educated in herbal medicine and the ways of the shaman. We were instructed to not touch the frogs, they were very toxic. He pointed out plants that were both good and bad. Some gave off some sort of oily substance that if rubbed in the eyes by accident would permanently blind you. There is the tropics version of poison ivy, an anti-itch remedy, an insect repellent, the plant from which the composition for Viagra was discovered, one plant was THE most hallucinogenic(sp?) substance known, mushrooms that are proving to be a very probable cure for cancer in the future as well as many other mushrooms from which medicines are already derived. I have some knowledge of tropical biology but didn't mention anything other than my desire to find and photograph snakes. The guide never was inaccurate or went overboard about the things that I did already know so I believe he was extremely well-educated in the local flora and fauna. This trip was the most educational one I have ever had(although they are all educational). The complex world of the leaf-cutter ant colonies just blew me away but thats probably for another forum, LOL.
DM Exotics