High in thick bamboo forests in the misty, 【小题1】(rain) mountains of southwestern China 【小题2】(live) one of the world’s rarest mammals: the giant panda, also called the panda, Only about 1,000 of these black-and-white 【小题3】(relative) of bears survive in the wild.

Pandas eat almost nothing 【小题4】 bamboo shoots and leaves. 【小题5】(occasion) they eat other plants, fish, or small animals, but bamboo accounts for 99% of their diets.

Pandas eat fast; they eat 【小题6】 lot, and they spend about 12 hours a day 【小题7】(do) it. The reason is 【小题8】 they digest only about a fifth of what they eat. Overall, bamboo is not very nutritious. To stay healthy, they have to eat a lot-up to 15 percent of their body weight in 12 hours-so they eat fast.

Pandas’ molars(臼齿) are very broad and flat. The shape of these teeth helps the animals crush the bamboo shoots, leaves, and stems they eat to get the bamboo to their mouths, 【小题9】 hold the stems with their front claws, which have enlarged wrist bones that act as thumbs for grasping things. A panda should have at least two bamboo species where it lives, or it will starve. Pandas are shy; they don’t go into areas 【小题10】 people live. This restricts pandas to very limited areas.