I am assuming that so called “dark matter” does not emit or reflect photons and yet maybe there is still another wave length of energy our most advanced instruments cannot detect. I imagine that if life forms are living in systems composed of what we call “dark matter” they may be in the reverse predicament that we are - they cannot “see” the systems we see but their calculations assume there is “dark matter” that accounts for their scientific equivalent of a standard model of physics.
“Dark matter” is an example of science relying on a miracle to explain what they do not understand.
The universe has no interest in sharing its secrets with the hairless apes.