Q: In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.
Guinea pigs are " Cavia porcellus " , a kind of rodent .
A:
The guinea pig or domestic guinea pig ( " Cavia porcellus " ) , also known as cavy or domestic cavy , is a species of rodent belonging to the family Caviidae and the genus " Cavia " .