Change To Adapt...To Evolve... To Survive

"Change is Inevitable.......................Change is Constant"

Must have heard this a lot of time. I had many questions on this right from my school days.
Why is change constant?, Why do we need to change?, What causes change?. What should the change be?, Can't we avoid change?...............................

I got many debatable answers but no fixed answer to this. Change is a relative term so definition of change can't be fixed. So agreed we do need to change, but what does change mean.
To me change is a phenomenon that we exhibit (and also inhibit.. to some extent.. till the time it emerges to the outer world) at each and every stage of our life depending on the physical and emotional environment that we dwell in.

But humans, as we are, we don't change, we try to change or we bring about changes in ourselves.
But that, I feel is incorrect. We should learn from other creatures be it birds or animals. We should change to adapt to the surrounding changes. Adaptability is necessary to survive. Since change is a relevant thing surrounding will keep on changing continuously depending upon changes in the other entities. So changes can't be predicted. We need to develop characteristics to predict these changes. For that we need to evolve.

I just wanna say that do not change yourself because of one other person. But change yourself to adapt to that change in one other person. We can survive just by evolving.

I read the below good lines in one of the Orkut Profiles.

"Every morning in Africa, a gazelle awakens. He has only one thought on his mind: To be able to run faster than the fastest lion. If he cannot, then he will be eaten....

Every morning in Africa a lion awakens. He has only one thought on his mind: To be able to run faster than the slowest gazelle. If he cannot, he will die of hunger....

Whether you choose to be a gazelle or a lion is of no consequence. It is enough to know that with the rising of the sun, you must run. And you must run faster than you did yesterday or you will die.
This is the race of life."