[Alter Kaker]

. But isn't it also true that all life forms eventually cease to exist and that we have yet to see any life form actually improve on itself and mutate itself into a continuous life form.

I'm not sure what you mean. Yes, all organisms die, but the number of species has steadily risen over the last few billion years. Living things have evolved to occupy extremely specialized niches (like living in rocks, surviving thousand degree temperatures and even vats of acid). And we see organisms evolving all the time to carve out new niches and adapt to environmental pressuers.

[Sweetjustusnow]

"And we see organisms evolving all the time to carve out new niches and adapt to environmental pressures."

I know that we have "discovered" them and they are indeed new to us. But how have they been seen to 'evolve'? I know that species are able to 'adapt' to severe environments. But as to actually observing them (especially higher life forms)actually changing in to something else?