Joined: April 2006
|Quote (VMartin @ July 28 2007,04:11)|
|I have discussed swans already elsewhere. Folks there noticed that swans are also black in Australia. But I would say it plays more in my cards than it supports neodarwinistic veiw. Because if the same species is white or black it is hardly explainable by natural or sexual selection. It is really very curious - (speaking about Australian/Tasmanian/NZ versus Europian/American fauna) that natural selection could lead to striking similarity of placental and marsupial wolf (convergence). The same natural selection would have led in both areas to different and almost opposite coloration of swans.|
European grey wolves are grey (hence the "grey" in the name). Thylacines (tasmanian tigers) were brown with stripes (hence the "tiger").
Trust me, having been to been to both Europe and Australia that the climates, flora and fauna, and geography are quite different in both regions. For instance, it snows in a goodly portion of the white swan's European range, which was covered in glaciers 10,000 years ago. It does not snow in much of Australia, and we don't have glaciers.
I'll repeat, I have no idea why they have the colors they do; that does not imply "god did it". It's a several year research project to work out why white swans are white. If you want to fund the study I'm sure I can find someone to do it for you.