“Our results suggest that diet is not directly related to selection on the head morphology and biting performance of B. pumilum in woodland habitat, but that it may be important for selection in fynbos due to a reduction in overall prey availability.”…
https://www.researchgate.net/public...orphs_Do_harder_bites_equate_with_harder_prey
https://www.researchgate.net/public...orphs_Do_harder_bites_equate_with_harder_prey