Complex sentence: As a result of this prot (and presumably other K PAXian's) are capable of detecting wavelengths of light invisible to humans, this adds credence to prot's claim that he is not in fact human.
Split into simpler sentences: As a result of this prot (and presumably other K PAXian's) are capable of detecting wavelengths of light invisible to humans. This adds credence to prot's claim that he is not in fact human.