Knowing the alien

This is Udun. He’s a Kresz from a part of space called The Lenticular, which holds many alien civilisations. He stands 2.4m tall (normal for his caste, but shorter than most Kresz females and certainly shorter than Defender caste Kresz) and has both an endoskeleton and a chitinous exoskeleton like laminate armour. His body plan is typical for a member of the scholar caste. He has three claws on each hand, and as a result the Kresz have a base six numbering system. In fact six is a very important...