sentences:  This identification of this particular clade has long been suspected based on similar morphological characteristics amongst these large-bodied species.More surprisingly, the smaller, much paler-bellied sister species Bonelli's eagle ("A. fasciatus") and African hawk-eagle ("A. spilogaster"), previously included in the genus "Hieraaetus", have been revealed to be genetically much closer to the Verreaux's and golden eagle lineage than to other species traditionally included in the genus "Aquila".Other largish "Aquila" species, the eastern imperial, the Spanish imperial, the tawny and the steppe eagles, are now thought to be separate, close-knit clade, which attained some similar characteristics to the prior clade via convergent evolution.