Scary fish inhabited the Amazon. Electric eels Zap 650 volts, the stingrays pierced the victim through tails, piranhas eat just… But all outdid catfish Candiru.
Candiru catfish or vandellia (lat. Vandellia cirrhosa ) in translation from Latin means “freshwater fish”. It is found in the Amazon river and its tributaries. Local residents believe the Candiru is much more dangerous than piranhas. The length of the fish about fifteen inches,however most common Candiru catfish the size of a matchstick. In appearance it is almost transparent and eel-like fish shape.
Growth Candiru are small, no more matches. And to thin that are almost transparent. But the natives, living along the coast of the Amazon, keeps at Bay. However, things to people soma no, he feeds on the blood of fish. When the catfish Candiru feels characteristic stroenie water and the ammonia odor, fish emit when breathing, he realizes that the next move in space like fish gills… That is the hole of a living being, in which you can get. And drink plenty blood… Continue reading
Pomacanthus is one of many genera belonging to the family of marine angelfish (Pomacanthidae). He currently has about thirteen species. Seven species of Pomacanthus belonged to the genera Holacanthus and Chaetodon; P. annularis and pomacanthus Emperor (P. imperator) still meet under both former names — and Holacanthus, and Chaetodon.
In comparison with other fish the same size pomacanthus characterized by the elegant combination of beauty and grace. P. annularis is a beautiful example of a complex combination of spectacular colors, typical of pomacanthus. Copper-orange body is intersected almost diagonally glowing blue stripes, in the temporal region on each side by a blue ring. The caudal fin is white with copper-orange border, stretches back dorsal, pectoral and pelvic fins are a bright copper-orange on the ventral blue band. This is a classic of the sea a handsome man, and yet he lacks the personality to take a leading role in its kind, since many pomacanthus look just as good. Continue reading
Sharks are color blind
At the University of Queensland examined the eyes of the shark and came to the conclusion that those deprived of color vision.
The research object of scientists were 17 species of sharks. During microspectrophotometric analysis, it was found that 10 of them were no cones, intended for color vision, and their role was partially assumed the highly sensitive sticks. The remaining seven species that belong to three different families, had one type of sensing elements designed to detect wavelengths from 532 to 561 nm.
It is known that whales, dolphins and killer whales also stick with the cones of one type, which is able to recognize green color. Continue reading
In the waters of the Gulf of Thailand is inhabited by many species of jellyfish, most of them pose no danger to the bather. However, occasionally there occur and deadly members of this family — jellyfish. This jellyfish cylindrical body and a very long blue or blue tentacles (length of tentacles of some species of jellyfish reaches 4-5 meters). In August and October of 2015 near the Islands of Samui and Phangan were registered two fatal accidents with the girls who decided to go swimming at night and saw the presence in the water of this dangerous jellyfish.
If you are going to swim in the sea, pay attention to the coastal strip. If the sand contains up washed up jellyfish, so you should be doubly careful when bathing. As a rule, jellyfish that can sting you, quite visible in the water because of their dark or bright color (transparent jellyfish are not dangerous to the bather). But the situation may be complicated by the agitation of the sea, or opaque because of suspended sand in the water. It is especially dangerous to bathe in the dark. Continue reading
In the aquarium in most cases, contains several species of fish. So when selecting them you need to pay special attention to match the requirements of the conditions of keeping and feeding. According to data available at the present time there are about 300 species of aquarium fish, but more than half of them are rare. When krasnovidova the content of the fish is very difficult to create optimal conditions for each species. I mean the lighting, temperature, vegetation, and oxygen feed mode, the thickness of the layer of water, its cruelty and acidity. However, many fish species are characterized by their ability to adapt to environment conditions.
Many aspiring Amateur aquarists strive to keep in the aquarium more vibrant and beautiful fish, oblivious to the fact that you can not find them only in appearance. Survival, development and reproduction of fishes is a complex process. While much will need to be taken into account. Continue reading