The best part of living in Arizona was to have hummingbirds hovering around. Looking back, it was just like dream. Now I have kererus, native forest pigeons, around the house, and they are so nice to look at when they make a fuss in the branches, but don't have the sense of pure, intense life that only hummingbirds can offer.
This from yesterday's paper:
"US researchers found that hummingbirds manage to hover for long periods by supporting 75 per cent of their weight during their wings' down stroke and 25 percent on the up stroke. / Other birds support all of their weight on the down stroke for slow flight and short-term hovering, while insects produce equal amounts of lift on both the down and up strokes."
The problem is: how did hummingbirds develop such skills? Do we know ANYTHING AT ALL about what evolution is?
There are two things that can drive you crazy. The nature of the universe and that of evolution.
