From what we know through archeology and science, different forms of life have existed on this earth at different time periods. One COMMON THREAD RUNS through their lives. Death. Species become extinct . Others take their place. This cycle along with death, is the only constant.
If there is a being who is creating life then he/ she /it is neutral about what species do here on this planet. If creating different forms of life is an experiment towards evolving creatures with an intended perfection level, then we are lab. guinea pigs.
Is the intended perfection level of life to come through the brain of homo sapiens? Or will there be yet another (and another and another) species of beings after homo sapiens die off?