References in periodicals archive ?
Many vertebrates such as tortoises and susliks enter dormancy and remain inactive until the following spring.
This life-form is represented in Asia by susliks (Spermophilus and Spermophilopsis, both members of the squirrel family Sciuridae); in North America by ground squirrels (Spermophilus and Ammospermophilus, both Sciuridae); and in South America by guinea-pigs and similar genera (Cavia, Galea, and Microcavia, all of the guinea-pig family Caviidae).