The answer would be genocide
 
        
                    
             
        
        
        
We examined the biogeographic patterns implied by early hominid phylogenies and compared them to the known dispersal patterns of Plio-Pleistocene African mammals. All recent published phylogenies require between four and seven hominid dispersal events between southern Africa, eastern Africa, and the Malawi Rift, a greater number of dispersals than has previously been supposed. Most hominid species dispersed at the same time and in the same direction as other African mammals. However, depending on the ages of critical hominid specimens, many phylogenies identify at least one hominid species that dispersed in the direction opposite that of contemporaneous mammals. This suggests that those hominids may have possessed adaptations that allowed them to depart from continental patterns of mammalian dispersal.
plz mark me as brainliest if this helped :)
 
        
             
        
        
        
Answer:
A ciliated secretory epithelium lines the uterine tube.
 
        
             
        
        
        
I don't have enough information but it could be natural selection or mutations.