Question: where do guinea pigs sleep in the wild

title: Guinea pig
text: C. porcellus is not found naturally in the wild ; it is likely descended from closely related species of cavies , such as C. aperea , C. fulgida , and C. tschudii , which are still commonly found in various regions of South America . Studies from 2007 -- 2010 applied molecular markers and studied the skull and skeletal morphology of current and mummified animals , thereby revealing the ancestor to most likely be Cavia tschudii . Some species of cavy identified in the 20th century , such as C. anolaimae and C. guianae , may be domestic guinea pigs that have become feral by reintroduction into the wild . Wild cavies are found on grassy plains and occupy an ecological niche similar to that of cattle . They are social , living in the wild in small groups that consist of several females ( sows ) , a male ( boar ) , and the young ( which , in a break with the preceding porcine nomenclature , are called `` pups '' not `` piglets '' ) . They move together in groups ( herds ) eating grass or other vegetation , and do not store food . While they do not burrow themselves or build nests , they frequently seek shelter in the burrows of other animals , as well as in crevices and tunnels formed by vegetation . They tend to be most active during dawn and dusk ( crepuscular ) , when it is harder for predators to spot them . 

Answer: answer: Some domestic guinea pigs that have become feral by reintroduction into the wild frequently seek shelter in the burrows of other animals, as well as in crevices and tunnels formed by vegetation.
answer: Wild cavies are found on grassy plains.  While they do not burrow themselves or build nests, they frequently seek shelter in the burrows of other animals, as well as in crevices and tunnels formed by vegetation.