Is evolution still a theory?

Evolution is a theory and it is one with a vast wealth of scientific evidence and observable evidence which is used in real world situations to solve real problems. Evolution can be applied to the study of antibiotics and how they are losing effectiveness due to antibiotic resistance. We can observe the mechanisms in these very tiny life that

Is the string theory just a theory that is grasping at straws?

I don't pretend to understand the physics of string theory, but my answer to the question is no.  String theory is an attempt to provide a consistent framework to describe and predict observation.  If it works, it works.  If it doesn't, it doesn't.  The semantics of the theory are just limitations of