div class=ts-pagebuttonPage 1button div class=ts-image a href=https:reader040vdocumentsusreader040viewer202203202355beb157bb61eb946c8b46bchtml5page1jpg target=_blank amp-img class=ts-thumb alt=Page 1: Sever1991 porcupine shelters src=https:reader040vdocumentsusreader040viewer202203202355beb157bb61eb946c8b46bchtml5thumbnails1jpg width=142 height=106 layout=responsive amp-imga divpSever 1991 The use of shelters by Indian Porcupinespdiv