Where two of the faunal realms meet there is usually, though not always, a mixing of faunas.
The good effects of " Faunal " works such as those named in the foregoing rapid survey none can doubt, but important as they are, they do not of themselves constitute ornithology as a science; and an inquiry, no less wide and far more recondite, still remains.
Throughout vegetation is scanty and faunal life poor in species, though in some respects certain of the species, e.g.
Thus Cuvier, following Buffon, clearly anticipated the modern doctrine of faunal migrations.
The Hamilton fauna which followed represents the admixture of the resident Onondaga fauna with new types which are thought to have come from South America, showing that faunal connections for marine life had been made between the interior of the United States and the lands south of the Caribbean Sea, a connection of which, before this time, there was no evidence.