Why the wacky fins?
It likely has something to do with their breeding system - otherwise it wouldn't persist as a character in just the males. We are going to test to see if it is a more or less efficient design when compared to the non-wacky fins, but my hunch is that the "stuck-on-backwards" look has evolved as a way for strapping males to "display" to females for breeding rights (think of a peacock's tail) or as a way to outcompete other males for females.
How do I test which one of these is the best hypothesis? I have to do two things: first, I'll measure the hydrodynamic performance of the fins compared to normal fins; and second, I have to see what the animals are doing in the field.
The first stage tells me what an adult male is capable of: does the backward fin help males move faster than expected (possibly in order to defend more females or bully or out-maneuver other males), or does it slow them down significantly or make them less agile than expected (leading me to suspect that the fins are a handicap, and females have the final say in mating).
This line of research involves making physical models of the fins and doing experiments in a flow tank - sort of like a wind tunnel, but with water. In order to make the models, we have to get very accurate images of the fins with a medical CT scanner. Unfortunately, time on a medical CT scanners is expensive! This is where you come in! Your contribution will help me purchase the time I need to complete the scanning. From there - its a piece of cake!
The second research initiative that will help me figure out if my idea is correct is simple field observations. By observing the behaviors of these animals in their native habitat, we'll be able to document breeding events, and which sex initiates and maintains breeding contact. This will be the nail in the proverbial scientific coffin.
In order to do this, I will travel to Costa Rica and Panama to scout appropriate field sites. I have colleagues in both countries, who are ready for me to hit the water, if I can buy gas to run the boat. This is where you come in; your contribution will help me fund a few weeks of surveys to assess the feasibility of research sites in these countries. With your help, I'll figure out what's going on with these crazy dolphins with their fins "stuck on backwards".
So you know: RocketHub is not an investment or charity. It is an exchange: funds from fans for rewards from me. It's an All & More funding mechanism: if I don't reach my financial goal I get to keep what I raise. But if I do reach my goal, I get access to exciting opportunities.
Keywords: #SciFund, Dolphin, Backward, Science, Research, Dorsal Fins, Spinner Dolphin,