When you see the golden fish, you will be amazed by his changeable forms, and you must also want to discuss each shape. Next, petnet will bring you all together Take a look at the evolution of goldfish organs.
Head
Let's start from the beginning, in terms of head shape, goldfish can be divided into three types: flat head, goose head, and lion head. The flat head is a primitive head shape, the head is small, triangular, and the head is smooth without major variation; the goose head is slightly larger, and there are sarcomas on the top of the head, but only on the top of the head; the lion head is the largest, and the sarcoma is particularly developed, not only on the head Department, and even Liang Ce's cheeks were occupied by him.
Eyes
Besides the normal eye shape, there are four variants: dragon eye, blister eye, skyward eye, and frog eye. The eyeball of the dragon's eye is protruding, and it is named after the legendary dragon's eye; the eye sockets of the blisters are like balloons hanging on both sides of the head, and it is very pleasant to swim; facing the sky, as the name implies, the eyeballs are turned towards the sky; the frog's eyes are a bit like blisters, It's just that the orbital protrusions are much smaller, also called small blisters.
fish scales
Rare fish scales also have transparent and pearly variants. Transparent fish scales are formed because there is no pigment in the scales; pearl scales protrude outward and are filled with calcium, like pearls inlaid in the fish body.
Nose
Goldfish also have a variation of their nose called a pom-pom. It is formed by the growth of the nasal septum of goldfish, which protrudes from the nostrils in a petal-like shape, and has high ornamental value.
caudal fin
The caudal fin occupies a very important position in the body shape of goldfish, and the variation is particularly noticeable. Rarely has a single tail: grass goldfish belongs to this type; if the two dorsal lobes are connected and the ventral lobes are separated, it is called three tails, and if the two dorsal leaves are also partially or completely separated, it is four tails
Of course , the variation of goldfish is far more than that, there are also variation of mouth shape, variation of operculum, variation of body color, etc. The combination of these different cheap variation organs has formed the colorful world of goldfish today.