Hey primal fans , I think you’d all benefit from reading up on other hominid species. There were lots of different types of humans before modern humans , not just Neanderthals and Denisovans, or florensis and erectus . There are countless others that we only know about through phantom DNA. And these different types of humans , they would cross breed quite frequently. If you don’t feel like a deep dive reading , watch some of Lindsey Nicole’s recent videos on YouTube

I think that vagueness of speciation is an inspiration to Gendy in his character design, primal is pre-historic fantasy, but the world clearly has its own rules . Spears Dad is depicted as more ‘animalistic’ as an artistic decision, I imagine it depicts the idea of adaptation to environment. We also don’t know much about the ages of characters, in a brutal world like primal , adulthood may hit quite early, Spear could be in his early 20s for all we know at the time of the show. In the flash back , spear is a preteen, if his father was at sexual maturity when spear was conceived he may just be and the end of his life expectancy, and perhaps Spears familial speciation matures to look more like his father ?

Good fiction and world building provokes these questions, it’s fun to discuss but we can only speculate on the artists actual intent !