Bubalus grovesi is an extinct species of bovine that once lived in southern Sulawesi during the Late Pleistocene and Early Holocene epochs.
B. grovesi was an extremely small buffalo species, estimated at only . It experienced a body size reduction of about 90% from the typical water buffalo. The closest relatives of B. grovesi are the two living species of anoa, which still inhabit Sulawesi today.
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