Fish dog belongs to the order or skalozubovyh iglobryuhovyh, and account for their more than ninety species.From other fish she have a unique ability to swell when frightened, swallowing a large amount of water or air.Then she pricked spikes vypryskivaya nerve poison called tetrodotoxin, which is 1200 times more effective cyanide.
Dog-fish because of the special structure of the tooth is called puffer.In puffer teeth are very strong, fused together, and look like four plates.With their help, she splits shells of mollusks and shells of crabs foraging.Known rare case when the fish is still alive, not wanting to be eaten, bitten off finger cook.
Some fish are also able to bite, but the main danger bears its meat.
In Japan, this fish is called fugu exotic, expertly cooked, it ranks first in the list of local specialties.Price for one serving of this food reaches $ 750.
When his cooking will take an amateur chef, tasting are fatal, as in the skin and internal organs of the fish contains a strong poison.First, the tip of the tongue numb, then the limbs, followed by convulsions and instant death.When gutting fish dog emits a fetid smell terrible.
The most common types of dog-fish include:
- Belokrapchatuyu, live in the tropical zone of the Pacific Ocean and the waters of Indonesia.
- Maki-Maki, prefers to live the tropical Pacific and Indian Oceans.
- ringed living in tropical coastal waters of South and Central America, which are washed by the Pacific Ocean.
- Chernokrapchatuyu, are inhabitants of the Indo-Pacific region of Polynesia to the east coast of Africa and the Red Sea.
have red-mottled or fish dog thick elongated body, thick-lipped mouth, back, lower part of the head and abdomen are covered with small spines.On the back there is a single fin, pelvic fins absent pectoral fins are broad and small and truncated tail fin.Under the eyes are small tentacles with their olfactory organs - nostrils.Like all iglobryuhovyh bright pupils moving is cast in green or blue.Teeth are interconnected and form a conjoint cutting insert.
The length of the fish, the dog can reach up to 50 cm. The whole body is basically the same color with lots of small spots and large dark spots with light border of the pectoral fin, which form a pattern similar to the eye.The same spot is located at the base of the dorsal fin.Because of these spots the fish and gave the name of "mottled", and thanks to its reddish fins called crested.
Depending on the species, fish-dog has different colors - from light sandy to dark gray with spots all over the body, or the leopard sirenevato with bright yellow stripes.
Fish Dog inactive and moves with the help of dorsal, pectoral and anal fins that are behind, and the caudal fin is usually used as a rudder.Special musculature allows it to go not only forward but also backward, which compensates for the low rate.
When mating male and female courtship swirling at the bottom, then the female lays eggs on the rock, and male fertilizes them, the body covers masonry and remains to protect their offspring.In a few days appear similar to tadpoles fry.The male in the groove made in the ground moves them, while continuing to protect as long as they do not start to eat.
first offspring feeds on small ciliates, then the diet is becoming more diverse.Most species of these fish are omnivores, although preference is given to animal foods, mainly invertebrates.
