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The structures of animals... studying them reveals the unity existing between them - 1 -

Animal skeletons
Studying them reveals the ongoing unity between them

Scientists divide animals into two large groups: animals with vertebrae in the back (vertebrates) and animals without vertebrates.

And animals with vertebrae, led by humans. These include lactating mammals, such as horses, cows, sheep, deer, lions, and foxes. Including birds such as sparrows and hawks. Including reptiles such as turtles, lizards and snakes. Including amphibians that live on land and water, such as frogs. Including fish. We will deal with these animals first, taking the human skeleton as an example, to which the skeletons of all other animals are attributed.

Non-vertebrate animals, such as sponges. Including corals that originate in the sea, including worms in all their forms. Including molluscs such as snails. Including insects such as bees and flies.
Including spiders. And many more.

These structures, when they exist, are non-vertebrate and we treat them after treating vertebrates.

- The human skeleton

It does not occur to a person that he walks and a bone moves with him. And he sits and a bone sits with him. He sleeps and a bone lies with him. And if he stretches out while lying down, a bone expands with him, or folds, a bone folds with him.

It is one of those facts about which there is no doubt
In it, but people ignore it. How much truth there is in this existence. How much negligence exists in man.

And you remind him of the vertebra in his back, and he remembers, but...
Ask him how many vertebrae are in the neck, and how many vertebrae are below it
Chest and cotton. How many bones are in his limbs, in his hands and feet, and where does the bone stand alone in the structure, and where do the two bones stand parallel to each other, and how many bones are in the wrist of the hand, and how many bones are in the wrist of the foot, and how much similarity is there between the hand and the foot? All of these are questions, or they are questions. In a school exam, most people never got a fifty percent grade.

People are keener to know what is in the moon and Venus
Mars among them is aware of what is closer to them than a rope
Vein.

And the reason? This is a funny question that we ask scientists
Psychology and philosophers.

- A unity not obscured by difference

Man has his own skeleton, and various types of animals that we are almost unable to count also have their own skeletons.
The main goal of our various conversations is to show the basic unity in all of these structures, which is always accompanied by differences in details. But it is a difference that does not obscure the unity of its engineering design plan, proof that the designer is one. If there were two or more, the designs would be multiple.

And if unity is evidence of the unity of creation and making,
The evidence of the unity of the maker is that this maker was whatever he was. Difference is evidence of skill and wisdom, and evidence of skillful technique. It is also the case that if circumstances change, the design must be changed to the extent that it responds to the changing circumstance.

For this reason, the unity that should be revealed in creation is always accompanied by various manifestations along the line. It is an obscure unity, but despite this, it is never hidden.

The human structure has reached perfection among the rest of creation, and we do not say it has reached perfection. He has reached completeness and perfection in terms of
The expected assumption is that man walks on the surface of this earth. However, we are more familiar with it than any other structure. Therefore, we take it as a model to which we refer all other animal models to show the difference and unity between them.

- Bones of the human skeleton

Anatomists are accustomed to dividing the skeleton into two parts. They called the first the axial skeleton, which consists of the skull and the vertebral column. They called the second the appendicular skeleton, which consists of the shoulder girdle and the hands attached to it, and the hip girdle and the legs attached to it.

-Skull

The human skull consists of 22 bones, some of which fuse in the adult body. The skull is the home of the brain and the location of most of the sense organs. It is also the entrance to food, and the entrance to the brain: it consists of the cranium, which is part of the skull, the bone that covers the brain, and it consists of the face, which contains the eyes, ears, nose, and jaws.
The skull in humans is relatively larger than the face. It is rounded like domes.

- Vertebral column

It consists of seven small vertebrae in the neck, and 12
Shaddada in the chest, and with this the ribs are connected, then e
Heavy lumbar vertebrae. Then come under these five pelvic vertebrae fused into one bone, which is the sacrum. Finally come the last four vertebrae, which are also fused, and are known as the coccyx
It is the end of the column, and represents what is left of the tail.

- Ribs

There are 12 pairs, one of which is connected to the thoracic vertebrae. In about 6 percent of people, the number of ribs is 13 pairs.

The ribs are joined in front of the sternum to the breastbone, thus forming something similar to a cage that protects the heart and lungs inside it.