Cavus (pl. cavi) is the Latin word for 'hole'. It is used in planetary geology to refer to irregular steep-sided depressions that do not seem to be impact craters.
CAVY, a name commonly applied to several South American rodentanimals included in the family Caviidae (see Rodentia), but perhaps properly applicable only to those belonging to the typical genus Cavia, of which the most familiar representative is the domesticated guinea-pig.
Cavies in general, the more typical representatives of the Caviidae, are rodents with hooflike nails, four front and three hind toes, imperfect collar-bones, and the cheek-teeth divided by folds of enamel into transverse plates.
The tail is short or rudimentary, the incisors are short, and the outer surface of the lower jaw is marked by a distinct ridge.
This sub-species is found in southern Bolivia, Paraguay and northern Argentina, and is commonly referred to as a Dwarf PatagonianCavy.
Their teeth never stop growing and are generally kept quite short.Cavies use a variety of movements: when undisturbed they walk, hopping like a rabbit, galloping and stotting a sort of bouncing on all four limbs at once in order to cover long distances at high speed.
Cavies have been clocked at speeds of over 28 miles per hour for more than half a mile.
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