Boyd Dawkins, writing in 1865, was the first to definitely cast doubt over the separation of the spotted and cave hyena, stating that the aforementioned tooth characteristics were consistent with mere individual variation.
Boyd Dawkins, v roku 1865 ako prvý, definitívne pochyboval o rozdelený jaskynných a škvrnitých hyen, tvrdil, že charakteristiky zubov boli v súlade s obyčajnou odchýlkou.