joeldatroll

Why did the first organisms on Earth need to evolve? Correct me if Im wrong, but arent single celled organisms like bacteria able to live in all kinds of extreme environments? If they are then it doesnt seem like they would have any need to adapt at all. Couldn't they have just stayed the way they were and survived perfectly well?

hauptmann

Those bacteria evolved/adapted to be able to survive in those extreme conditions. No one knows what the first life form on earth was, so that makes this a hard question. Earth is always changing and has great variations in temperatures and enviornments and life naturally evolves to increase the rate survivability. Different areas with different conditions will need different adaptaion, thus giving rise to variations in life.

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joe's_enjoyment

the first "organism" was some kinda primordial soup that somehow sprouted life, i think

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sleepischeap

evolution is an automatic process. theres no decision to evolve. creatures will evolve because some turn out better than others

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FitShaced

Survival of the fittest my friend.they evolved so they could eat more food,or defend themselves from other critters.

greypoe

We don't know how or what started evolution. Evolution is just how we describe an event in nature. Why would something adapt over time?
Perhaps everything adapted to percieve the various energies.

Data

It's the simple nature of the universe. The entire universe is far from settled, it constantly changes, so naturally we will too.

Darque Pervert

Adaptation and survival.

No.

No.

Explicit

Let's not think so small as to limit evolution to the earth only also. Why did evolution begin here? Well because it goes on everywhere naturally. The universe evolves, the galaxies within it evolve, the stars within galaxies evolve, the planets that surround them evolve to sometimes support evolutionary steps that lead to life ... which evolves. See how the evolution of life on a planet is a very small (albeit amazing) happening of the constant evolution of the universe itself.

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silverspork

The 2nd law of thermodynamics: the longer a system exists, the more chaotic it becomes.

Evolution is just that I believe. Creating more and more variations of life, therefore becoming more chaotic.