I did start a thread on Evolution as a subject a few weeks back:
http://www.sciforums.com/f19/s/showthread.php?s=&threadid=4784&perpage=20&pagenumber=1
Somehow you seemed to have missed it Kmguru.
I wrote the following to answer your question there, of course it needs a bit of refining since I wrote it many years back.
I'll go from the planets creation:
The Sun in its infancy suffers sunspots that jetison globuals of heated gases in to the cold void of space. The globual begins to float out and manages to just overcome the suns gravity enough not to be pulled back in, but this causes it to have an eliptical trajectory that orbits the sun.
This trajectory causes the globual to cool, and in essence allows it to create a spin, during which time the sun begins slowly to retreat in size as it condenses itself into a more effective fusion/fission centre.
As the spinning globual cools, it begans to have a crust harden for it's surface and as it hardens it has a captured polarisation throughout the landplates. (Magnetic friction can cause the plates to change polarity and cause earthquakes)
This newly formed planetry body is a mass that through it's trajectory, spin and magnetic mass of a disposition begins to attract free floating gas clouds through ionisation.
These eventually form vast pools of liquid upon the newly formed planets surface, that freeze... afterall, the planet lacks and atmosphere... well once that will lead to a greenhouse effect.
Then one day, another once globual appears on a collision course from another eliptical orbit and crashes into the newly formed earth. This causes the earth a trajectory change itself and cracks it's landplates like a spoon cracking the shell of an egg.
These cracks allowed hot molten materials to begin to merge with the frozen liquids on the planets surface, beneath a vapour cloud that had been thrust up to defy gravity and begin to create a atmosphere.
The hot rock caused liquid to cascade into the depths of the molten chasms, and caused great clouds of Acidic gases to extrude out and merge with the newly formed weather system, of lightening through friction.
The planets surface would be covered by hail, suffer cloudy spells (not just a day and night) and the acid rain began to fall.
Under the newly forming seas surface, at the base of a molten sizemic fissure, the acid levels began to have effects with some of the solidified rocks, the effect was Protein.
As this continued the effect metamorphed from protein to single celled creatures, that didn't rely upon sunlight, just warm fertile waters at the base of a sizemic fissure.
The single celled lifeforms began to change slowly, through a mixture of chemical changes in the water from the continued earthly reactions and the waste (excriment and dead organisms) caused the cells to become different. When sunlight began to beat down throughout the planets newly formed ozone, The very frequency and radiation was enough to cause a new step in evoltions path... Mutation, where a single cell splits to two, and they become Siamese twins.
Later, these Siamese twin cells would continue the evolution of difference, although joined and create the first Hermaphrodites and asexual organisms.
Further still these dual-cell creatures would then split again, allowing them to mate with each other, or to become puratins of one sex or another.
(You could look at our DNA for a clue as to how we first transcended, XX female and XY Male, Notice that Male could be percieved as once Hermaphroditic.)
The rest of evolution is Neo-Darwinism.
