Polar bear the fourhorn sculpin. With the exception of pregnant females, polar bears are active year-round, although they have a vestigial hibernation induction trigger in their blood. Unlike brown and black bears, polar bears are capable of fasting for up to several months during late summer and early fall, when they cannot hunt for seals because the sea is unfrozen. When sea ice is unavailable during summer and early autumn, some populations live off fat reserves for months at a time, as polar bears do not 'hibernate' any time of the year. Being both curious animals and scavengers, polar bears investigate and
Polar Bear Shores regulated. Mist is used to reduce the air temperature. The back-of-house facilities include five dens for the polar bears to sleep in when not in the main public exhibit. This is in addition to a maternity den. There is also one exercise yard which is a smaller area containing similar elements to the main exhibit. The exhibit has a dedicated food preparation area and a keeper's office for the monitoring of the bears. An upcharge behind the scenes tour is available under Sea World's Animal Adventures program. Since its opening in 2000, "Polar Bear Shores" has been home to eight