1, different subjects

The tortoise belongs to the family of turtles, while the kingbird belongs to the family of soft-shelled turtle.

2, the body structure is different

The shell of the tortoise is hard, and there are lines and patterns on the shell; while the shell of the king's eight is soft, and the lines on it are very shallow, which looks like the word king, and the king's eight's shell has about seven or eight such king characters, which is where the nickname king's eight comes from.

3, behavior is different

The turtle's limbs and head can retract into its shell when attacked, while the king's limbs can not.

4, head shape is different

The turtle's head is round, while the king's head is pointed.

5, different living areas

King's eight are living in fresh water, while some turtles live in fresh water and some in sea water.

6, different character

As for the temperament of the two animals, the turtle is gentle, not aggressive, and companions get along with each other. And the king's eight is not the same. The king's eight has a ferocious temperament, and its companions will kill each other. If you touch it with a branch or something else, it will bite the branch and not let go.

In our daily life, if a person is very timid, we will call him a turtle with a shrunken head, and if a person is very hateful, we will call him a son of a bitch. This kind of proverb is also very much in line with the characteristics of the two animals.

Baidu Encyclopedia - Turtle

Baidu Encyclopedia - Turtle