We currently have 47 bear skulls, skeletons, teeth, hands and claws that include Alaska brown bear, Alaska Grizzly bear, American Black Bear, Arctictis Binturong, Cave Bear. On that date we found and followed a blood trail about 400 yards until we lost it. Our most popular skull is the Alaska Grizzly Bear that measures 14.5 x 7.5 inches. old male bear skullThe story of the skeleton probably begins August 31, 2009. Females with young may loose up to 43% of body mass during denning. Our selection of bear skulls and skeletons includes 47 different models to choose from.Physiology differs from other carnivores - have a period of winter dormancy (hibernation) with profound changes in body chemistry, metabolism, breathing rate, and moderate changes in body temperature (Schwartz et al 2003) Its upper weight limit is estimated to be between 3,500 and 4,500 pounds, but its actual standing height was.
Recent studies suggest bears finely regulate calcium levels in blood and prevent its deposition in artery walls, which in turn prevents plaque build-up. Arctotherium was far more robust than modern bears.No fat deposits on artery walls (no arteriosclerosis) can gain significant weight in autumn (and lose in spring) with no ill effects. Claws used for digging not well adapted for climbing treesĭigestive tract similar to other carnivores except for its length (more surface for absorbing plant nutrients).Very long slightly curved claws 5-10 cm (2-4 in).Grizzly's ears are short and rounded Black Bears' are larger and more pointedĮyesight not keen but used for finding berries and nutsįeet plantigrade (walk "flat-footed") soles hairy.Grizzly has "dished' (concave) snout that is shorter than a Black Bear's.Besides, archaeologists also say that the discovery of skull might give us hints about indigenous people who lived alongside the mammoth predator. Grizzly has shoulder hump Black Bear doesn't The 16-inch-long skull is thought to be 1,300 years old.Other good ways to distinguish Black and Brown Bears: Grizzly's 1st molar in lower jaw is longer than 20.4 mm (.8 in) and wider than 10.5 mm (.4 in).
Most reliable way to distinguish a Black Bear skeleton from that of a Grizzly Bear: (Gordon 1977)