| Adult pandas weigh 165-353 pounds.
Their body length is 4-5 feet, with a 5 inch tail. Males are slightly
larger than females. They have stronger forelegs, wider muzzles and are
10-20% heavier. Pandas have stout, powerful limbs. Their hind feet lack
a heel pad.
Pandas have scent
glands positioned under the tail. Their head is relatively massive with
well developed chewing muscles. Unlike other bears, they have
well-developed premolars.
Their molars are
broad and flat and adapted to chewing bamboo. Their digestive system is
typical of a carnivore; only slightly adapted for processing bamboo:
tough esophageal lining, pyloric region of stomach thick and muscular,
small intestine shortened, colon surface area enlarged.
Male genitalia is
similar to red panda. Vision is poor. Their pupils have a vertical slit
like many nocturnal animals. Sense of smell is very good.
A panda's coat is
thick and wooly. It is white with black eye patches, ears, legs, band
across shoulders and sometimes tip of tail. Fur is slightly oily
preventing water penetration. Their striking coloration is thought to be
an important signal to other pandas ( They avoid contact and have poor
vision). Brown-and-white pandas exist but are extremely rare. Black and
white and bear衍ike, the panda roams in a well苓efined home訃ange of
between 3.9 and 12 km.
Much research on
pandas has been conducted at the Wolong Nature Reserve in Sichuan.
Studies here showed that the panda lived a solitary existence, meeting
only occasionally with other pandas, except during the very brief mating
season in late spring or early summer when several males come together
and compete for a female. A female is on heat for two to three days. New
research from Shaanxi Province's Qinling Mountains now presents a
different scenario. Far from living alone, it claims, pandas in Qinling
live and travel in groups of at least two, and sometimes in groups of up
to 28.
Giant pandas have a massive head, heavy body,
short tail, rounded ears and plantigrade feet (i.e., both heel and toe
make contact with the ground when walking in a manner similar to
humans).
A sedentary bear who
usually stays in a selected feeding area eating large amounts of bamboo,
giant pandas generally move in a slow, determined manner. When startled,
they will move at a slow trot to escape danger. Giant pandas, with their
short claws, are capable of climbing trees very easily.
The head of the giant
panda is very large and has developed large molars which are
specifically designed to crush fibrous plant material. It has powerful
muscles which extend from the top of its head to the jaws giving it the
capacity to crush tough stalks.
Even the throat of
the giant panda has undergone significant evolution as the esophagus has
a tough, horny lining to protect the bear from injury due to bamboo
splinters. The stomach is similarly protected with its thick muscular
wall linings.
Giant pandas have
forepaws which are extremely flexible. Evolution has given them a
enlarged wrist bone (the radial sesamoid) that works in the manner of an
opposable thumb. This highly functional adaptation allows the giant
panda to manipulate their primary food source, bamboo stems and leaves,
with dexterity and precision. The hind feet of the giant panda lack the
heel pad found in the other seven bear species.
While members of the
order Carnivora , giant pandas have evolved almost exclusively into
vegetarians with accompanying changes in their dental structure and,
also, to a lesser degree, their digestive tract. Their short intestine
is still not sufficiently developed to remove all of the available
nutrients from the fibrous bamboo on which they feed.
The basic fur colour
of the giant panda is white with black eye patches, ears, legs, feet,
chest, and shoulders. Within its natural environment ( the deep forest
and, at upper elevations, snow and rock) , its mottled colouring
provides camouflage. There is also speculation that its striking colour
pattern may be a clear message to other pandas to stay away as the giant
panda is an extremely solitary animal.
The fur of the giant
panda is thick and coarse. It consists of a coarse outer layer and a
very dense, wooly-like underfur. To the touch, the fur feels oily. This
oily protective coating helps protects giant pandas from the cool and
damp climate in which the bear lives. |