Summer hibernation of infant (six week old) 13-lined ground squirrels, Citellus tridecemlineatus.
D000367:Age Factors; D000818:Animals; D001793:Blood Preservation; D001803:Blood Transfusion; D005260:Female; D006605:Hibernation; D006358:Hot Temperature; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D012589:Sciuridae / Q000097:blood / Q000502:physiology*; D012621:Seasons