Unfortunately, there is no one conclusive theory as to why giant pandas are black and white. The giant panda has lived in bamboo forests for several million years. It is a highly specialized animal, with unique adaptations. The panda's thick, wooly coat keeps it warm in the cool forests of its habitat. Giant pandas have large molar teeth and strong jaw muscles for crushing tough bamboo. Many people find these chunky, lumbering animals to be cute, but giant pandas can be as dangerous as any other bear.
About the size of an American black bear, giant pandas stand between 2 and 3 feet 60 to 90 centimeters tall at the shoulder on all four legs , and reach 4 to 6 feet 1. Males are larger than females, weighing up to pounds kilograms in the wild.
Females rarely reach pounds kilograms. Giant pandas live in a few mountain ranges in south central China, in Sichuan, Shaanxi and Gansu provinces.
They once lived in lowland areas, but farming, forest clearing and other development now restrict giant pandas to the mountains. Giant pandas live in broadleaf and coniferous forests with a dense understory of bamboo, at elevations between 5, and 10, feet. Torrential rains or dense mist throughout the year characterizes these forests, often shrouded in heavy clouds. Giant pandas do not exhibit body characteristics that communicate visual signals. They have round, inexpressive faces.
Their tails are stubs and therefore cannot flag signals to other giant pandas. They have no crest or mane to erect, and their ears are not flexible enough to cock forward or flatten. It is thought that giant pandas never developed these visual accessories due in part to their habitat and solitary nature. Giant pandas live in dense, fog-enshrouded stands of bamboo that obstruct a direct line of sight and any potential visual communications. Giant pandas do occasionally vocalize when playing.
During mating, they become very vocal, relying on extremely detailed vocalizations to express all shades of mood from amorous to angry. Most of their communication is accomplished through scent marking throughout their habitat and territory.
Giant pandas mark their territory by rubbing secretions from their anal glands onto tree trunks, rocks or the ground, usually along paths that they habitually tread. Scent marking alerts giant pandas in the vicinity to one another. Depending on who reads the mark, the scents may either separate giant pandas or help bring them together. Outside of breeding season, a scent mark that is unfamiliar is usually enough to send a potential intruder ambling away. During breeding season, however, a female's scent mark advertises her sexual readiness and draws males to her.
A female is more likely to accept a male whose scent she recognizes and has encountered before. Millions of Zoo visitors enjoy watching giant pandas eat. A panda usually eats while sitting upright, in a pose that resembles how humans sit on the floor. This posture leaves the front paws free to grasp bamboo stems with the help of a "pseudo thumb," formed by an elongated and enlarged wrist bone covered with a fleshy pad of skin.
The panda also uses its powerful jaws and strong teeth to crush the tough, fibrous bamboo into bits. A giant panda's digestive system is more similar to that of a carnivore than an herbivore, and so much of what is eaten is passed as waste. To make up for the inefficient digestion, a panda needs to consume a comparatively large amount of food—from 20 to 40 pounds of bamboo each day—to get all its nutrients. To obtain this much food means that a panda must spend 10 to 16 hours a day foraging and eating.
The rest of its time is spent mostly sleeping and resting. Adult giant pandas may be generally solitary, but they do communicate periodically through scent marks, calls and occasional meetings. Recent research has also found that giant pandas may form communities of seven to 15 individuals within the local population.
These individuals occupy a "group" territory, within which male home ranges overlap almost completely, while female home ranges overlap far less. Members of different "groups" generally avoid socializing with each other.
Offspring stay with their mothers from one and a half to three years. Giant pandas reach breeding maturity between four and eight years of age. They may be reproductive until about age Female pandas ovulate only once a year, in the spring. A short period of two to three days around ovulation is the only time a giant panda is able to conceive. Calls and scents draw males and females to each other. Female giant pandas give birth from 90 to days after mating.
Although females may give birth to two young, usually only one survives. Giant panda cubs may stay with their mothers for up to three years before striking out on their own. This means that a wild female, at best, can produce young only every other year. In a lifetime, a giant panda may successfully raise only five to eight cubs.
The giant pandas' naturally slow breeding rate prevents a population from recovering quickly from illegal hunting, habitat loss and other human-related causes of mortality. At birth, a giant panda cub is helpless, and it takes considerable effort on the mother's part to raise it. While that may not sound too intimidating, these bears can grow to be 6 feet long and up to lbs.
Their distinctive black and white coats are not as soft and cuddly as they look -- their fur is thick and coarse as wool, insulating the animal so that it can live in relatively cool climates. The giant panda isn't always so giant. In fact, a cub is considerably smaller than most human newborns.
Born naked, blind and only 6 inches long or so, a panda cub is helpless for a relatively long time. For example, a giant panda cub is completely blind for as long as 5 weeks, and doesn't start crawling until it's about 10 weeks old. Cubs are dependent on their mothers for food for as long as nine months, and won't stop nursing until they are a year and a half old.
Because the babies are so dependent for so long, many don't survive to adulthood. Giant pandas aren't just big -- they're strong, too. These muscular bears have powerful jaws and strong teeth that crunch through 28 lbs. Well, giant pandas are always hungry when they eat.
Yes, they are impossible to satisfy. Although they eat so fast, they still spend hours a day consuming approximately 28 pounds of bamboo using their enlarged wrist bone to satisfy their tummies.
This is because bamboo is not that nutritious. So, they need to eat a lot for them to stay healthy. Due to this, pandas defecate 40 times every day.
Fun fact, right? Normally, a panda is 2 to 3 feet tall when on all four legs and roughly 4 to 6 feet long. Meaning to say, even the tallest pandas when stood on their two legs will still look shorter next to the tallest humans. Is it surprising? Have you seen a zoo keeper sitting or standing next to a giant panda in a zoo? I know you will agree with me if I say that their difference in size is very noticeable.
So we can say that in terms of height, humans are way taller than giant pandas, but not in every way. On the other hand, the average size of a giant panda in terms of weight is around to pounds, while the average human weight is around to pounds. Hence, it proves that giant pandas are heavier than humans in almost every way. Men on average are bigger and taller than females. This is a typical characteristic among mammals or in almost all of our domesticated animal species.
Same goes for our pandas. Male and female pandas differ in size. Male giant pandas are a little longer than females, and are heavier like 10 to 20 percent. They also have stronger forelegs than females. Their length is about 6 feet 1. In terms of weight, male pandas are about to pounds 85 to kilograms. I think it would be a great idea to compare the size of panda bears, grizzly bears and polar bears. The three are truly captivating species of bear.
0コメント