How long do bears hibernate?
Bears use shelters, such as caves and logs, as their dens; most species occupy their dens during the winter for a long period of hibernation, up to 100 day
Bears can hibernate up to 100 days in their dens during the winter
<START_INST>How long do bears hibernate?<END_INST><START_CTX>Bears use shelters, such as caves and logs, as their dens; most species occupy their dens during the winter for a long period of hibernation, up to 100 day<END_CTX><START_A>Bears can hibernate up to 100 days in their dens during the winter<END_A>