URSIDAE - the Bear Family
This family which is made up of seven species
(Grizzly, Polar bear, American black bear, Asian black bear, Sun
bear, Sloth bear, Spectacled bear), includes the world's largest
terrestrial carnivores - Polar bears. All bears except the polar
bear are considered omnivores, and the Polar bear is the only bear
classified as a carnivore, feeding mainly on fish and seals.
The Polar bears are the largest and can weigh over
1700 pounds, and the smallest is the Sun bear weighing in at
60-125 pounds. In species such as the Sun and Sloth bears who have
only one mate, the males are only 10-20% larger than the females,
but in species where males compete for females, they can be as
much as 100% larger than the females.
Bears have large heads; a large, heavily built
body; short, powerful limbs, short tails; small eyes; and small
erect rounded ears. There most developed sense is their acute
sense of smell. Bears walk on their feet (plantigrade) which are
broad, flat, and have a characteristic shuffling gate. They have
five digits on all limbs. They are capable of walking on their
hind legs for short distances. In all bears except the Sun bear,
the soles of their feet are well furred. The Sun bear has naked
soles which aids it in being the best tree climber in this genera.
With the exception of Grizzlies and Polar bears, most of the bear
species climb well. The claws are strong and curved and used for
tearing and digging. Their lips are free from the gums. All
species have 42 teeth except the Sloth bear which has 40.
During Autumn, most bears become quite fat, in
preparation for the upcoming cold weather and period of
hibernation, when they will cease eating altogether. As the cold
weather approaches, they go into a den which they have already
prepared in a protected location. It is in this den that they will
sleep out the winter and live off their fat reserves. With few
exceptions (pregnant females) Polar Bears do not hibernate. Most
of the omnivores hibernate during the times when food is scarce
and would otherwise not sustain them, however, the carnivorous
Polar bear does not have that problem and can continue to hunt all
year 'round. Some experts do not call this process true
hibernation because body temperature is not substantially reduced,
body functions continue, and bears can be easily aroused.
Sometimes, during periods of warmer weather, they will awaken on
their own. There are some experts who have determined that the
heart rate if a hibernating bear drops to less than half of
normal, and that there are in fact other physiological changes
occurring. Therefore, these scientists do feel that bears are in
fact in a true state of mammalian hibernation.
As a rule, bears are peaceful animals and try to
avoid conflict. They can be formidable adversaries when they feel
that they, their offspring or their food supply are threatened.
The majority of bear attack stories are untrue, and those that are
are usually found to be related to provocation.
Bear's gall bladders and bile are regarded as an
essential part of traditional Chinese medicinal cures. And bear
paws are served as luxury dishes in the smart restaurants of
Taiwan for the practice of "junbu". This supposedly
passes on to the customer the qualities of the animal eaten - in
this case, great strength.
Not only that, but live animals - more often than not cubs - are
captured to be sold as dancing bears, principally in India and
Pakistan.
Often in Asia and China, the animals are not killed but captured
and caged, seriously depleting wild pupulations. They are then
kept in appalling conditions and are systematically
"milked" of their bile for Oriental medicinal markets.
People in many parts of South-east Asia believe that the bear bile
and gall bladder help cure ailments ranging from fevers to heart
disease. The giant panda is the only bear not valued in Chinese
medicine.
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