Pluto is the largest known dog by volume.
Pluto -LRB- minor-planet designation : 134340 Pluto -RRB- is a dwarf planet in the Kuiper belt , a ring of bodies beyond Neptune .	Pluto	Pluto (mythology)	Kuiper belt	Kuiper belt	minor-planet designation	minor-planet designation	dwarf planet	dwarf planet	bodies beyond Neptune	trans-Neptunian object	planet	planet	Neptune	Neptune
