Has natural selection really been tested and verified?

Modulous notes: According to
How many sheep are in the world? - Answers,
there are approximately 1,202,920,000, well below the human population. BUT!!!!The chickens! My god, the chickens! How many are killed and eaten each day around the globe? How many per second!!!In all seriousness, a general rule of thumb is that the smaller lifeform you are, the more numbers of you there are. There are something short of 7 billion humans, call it roughly 10^9th. Just a quick google tells me that there are something like 10^10th-10^12th bacteria in 1 gram of your typical human colon tract alone.See http://www.vivo.colostate.edu/...gestion/basics/gi_bugs.htmlBut IIRC bacteria are off topic....According to http://www.assistamerica.com/press_avianflu.html, in 2006 there were 35 billion chickens, an average of 5+ for every human being.This, however, is also Off Topic

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- xongsmith, 5.7d

Peg notes: Perhaps it's just a relative blink of an eye on the time scale involved.You might also want to consider typical generation lengths. In the human Australian Aborigine it might be an average of 18-20 years? In the Galapagos Finch? 1 year? I dunno, but that would also be a factor for speciation. Even so, this would be at least 2000~ generations as opposed to a mere few in the beak study.Perhaps the outback ecology was similar enough to the African ecology that Natural Selection wasnt very different, but in the case of the finches, the NS force was significant.We should also consider pygmy isolations.
Start at Pygmy peoples - Wikipedia.Again, speciation has not yet occurred.

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- xongsmith, 5.7d

herebedragons suggests: On the eastern side of Buzzards Bay there are various indentations to the beach as is normal, irregular projections of rocks sticking out and cupped areas that do not. In one of them, on the southern side, the beach is almost 100% rounded rocks approximately 1 to 3 inches in diameter, all worn smooth by time. In the other beachlets on the way to this beach all the rocks are jagged edged mostly. A round rock is very rare there. What is going on? There seems to be a resonance with the tides and shaped of the beach and the bay as a whole that favors the wave action dumping these round rocks all in one place? Very curious. I would say that Natural Selection has selected for round rocks there and not for the other places. And maybe the jagged rocks are being selected against there, or very quickly getting rounded off?

The Doctor says: [joke]...Hey! Maybe that's where Nessy came from!![/joke]

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- xongsmith, 5.7d

Non-summation hidden. --Admin
Edited by Admin, : No reason given.

YES

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- xongsmith, 5.7d