What do you mean by a few ferns?

Several teeth of a sheep are a way to identify the age of a sheep.

A sheep has four pairs of front teeth in its lower jaw. The middle pair is called incisors, the inner middle teeth and the outer middle teeth on both sides of incisors, and the outermost pair is called horns. When sheep 1.5 years old, deciduous incisors were replaced by permanent incisors; 2-2 and a half years old; 3-year-old missing external middle teeth; 4-year-old horn teeth fall off; After 5 years old, it can be judged according to the size of the teeth, the degree of tooth wear and the condition of the teeth.

Over 6 years old, the gums are sunken, the teeth lean forward and the crown is narrowed; The roots of 7-9 years old move and fall off one after another. Experienced farmers and herdsmen in our country identify the age of sheep in this way: "One-year-old teeth change, two-year-old teeth change, three-year-old teeth change, four-year-old teeth change, and five grades, six grades and seven grades lose one tooth". This method is simple and easy to remember, master and popularize.

Living habits of sheep:

Sheep's herd behavior is very strong, and it is easy to establish a group structure. Through visual, auditory, olfactory, tactile and other sensory activities, all kinds of information are transmitted and accepted to maintain and regulate the activities among group members. Strong foraging ability and wide range of feed utilization. Sheep like to eat clean feed and drink cool and hygienic water. Forage and drinking water, once polluted or smelly, are unwilling to eat or drink.