The survival instinct is part of the fabric of every living creature. Even bacteria and viruses mutate to survive.You presume that it does. First of all to suggest that nature instils the survival instinct implies facts not in evidence. Why is it not more likely that the survival instinct is simply a function of nature, not something created by nature?For instance, what possible reason could nature have for instilling the survival instinct into life.
Why would nature care if life survived?
There is no randomness to this. The instinct to survive is a condition or rule of life.