We certainly could, if there were evidence for such a thing.

Currently the historical and genetic data points away from common descent, and points towards a Creation event(s)

We simply are not seeing mutation events that would account for steadily increasing complexity.

Nor are we finding the fossil evidence of these gradual shifting of morphologies.

Not to mention, like it or not, the foundation of the evolutionary paradigm relies on some form of Abiogenesis, which modern molecular biology tells us is completely absurd. Nothing in natural science indicates that a living, functioning system will construct itself.