The polar bear is a large bear species native to the Arctic region. Here is an English description of its appearance and weight:

The polar bear has a distinctive appearance with its white fur, which helps it blend in with the snowy environment. Its fur is actually transparent and hollow, which helps to trap heat from the sun and keep the bear warm in the cold Arctic climate. The polar bear has a thick layer of blubber beneath its skin, which provides insulation and buoyancy in the water.

In terms of size, *** male polar bears can weigh between 900 to 1600 pounds (400 to 725 kilograms) and measure around 8 to 10 feet (2.4 to 3 meters) in length. Females are generally smaller, weighing between 500 to 1100 pounds (225 to 500 kilograms) and measuring around 6 to 8 feet (1.8 to 2.4 meters) in length.

The polar bear has a large head with a long neck and a strong, muscular body. It has small ears and a short tail. Its front paws are large and powerful, which help it swim in the water and walk on the ice. The polar bear also has sharp claws that are adapted for hunting and gripping onto the ice.

Overall, the polar bear's appearance and weight are well-suited for its Arctic habitat, allowing it to survive and thrive in one of the harshest environments on Earth.