Monkeys on the Brain

Yes, for a nominal fee, this monkey will dance on your head! Sometimes even more happens, but that may fall in the TMI category.
I was lucky enough to be in Central America on "business" and participated in a few "eco-tours." The word "eco" is often used loosely to mean something done outdoors, involving contact with water, rock, or animal. An ideal eco-tour, I guess, would be one that created a small carbon footprint with proceeds going to the protection of  indigenous species. What I saw was in between beach shops catering to a drunken spring break crowd and a less penetrable rain forest grown over Mayan ruins. The jungle-park excursion kept some jungle protected, I assume, and provided income for some people. (Not much, apparently, from the look of nearby dwellings.) The animals were tamed (somewhat) examples of what lived beyond the park. Probably better for tourists to encounter a few tamed examples than to disturb wild populations. And it is probably better to keep a few capuchins about for display rather than selling them as pets or meat. On another excursion, untamed howler monkeys made their statement and briefly appeared in the trees. Another appeared hanging over a river.

It is exciting, and a relief, to see wild animals still in their habitat. It is difficult to gauge, though, the extent of long term environmental protection in countries where human habitation often seems on a poor grounding.