Assertion: gerbil | /r/PartOf | the subfamily gerbillinae
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text: Gerbils belong to the subfamily Gerbillinae, which includes approximately 110 species of African, Indian and Asian rodents, and they were once known as "Desert Rats".The first known mention of gerbils came in 1866, by Father Armand David, who sent "yellow rats" to the Museum of Natural History in Paris, from northern China.