1, incubating eggs f ū Lu m: n Birds incubating eggs have a body temperature. The temperature in human and animals. Some animals, such as reptiles, amphibians and fish, are called "warm animals" because their body temperature changes with the change of environmental temperature. Because of its perfect regulation mechanism, animals that can keep their body temperature relatively stable under environmental temperature changes are called "warm-blooded animals", such as birds and mammals. It can usually be measured through the mouth or rectum (anal canal). Normal body temperature fluctuates slightly from day to day, lower in the morning and slightly higher in the afternoon. The change of body temperature is the basis to help diagnose diseases.

2. Nurturing the young: bǔ Chu nurtures the offspring.