Not all aquarium fish (and especially cichlids) so tolerant of their neighbors as ramirezi apistogramma and other dwarf American cichlids. Livable but not their only advantage, they are also very beautiful, they are interesting and, without exaggeration, meaningful behavior. That is why the fashion for these fish kept for many decades.
We all know that fashion is changing. In clothing from season to season, but in the aquarium it is slower. As a rule, the interests of the masses lovers of aquarium fish have time to change considerably over five years. Sympathy for some groups of fishes, having certain pronounced features that can steadily be maintained for decades. And yet, the process goes on. I remember the fashion for viviparous fish has been replaced by fashion for barbs, then became popular South American cichlids, and then a lot of people are fascinated by cichlids, but already African. Like any fashion, the fashion fish repeats. Continue reading
The first mention of the Black sea are found in documents relating to the V century BC. It is on the Black sea, Jason and the Argonauts went to Colchis for the Golden fleece.
The ancient Greek name of the sea — Pont Aksinsky (gr. Ἄξενος Πόντος), meaning “Inhospitable sea”. It is assumed that the sea was named so because of difficulties with navigation. Later, after a successful exploration of the coast by Greek colonists, the sea became known as the Pontus Euxinus (gr. Εὔξενος Πόντος, “Hospitable sea”). Romanian Black sea Marea Neagră is called.
A characteristic feature of the Black sea is complete (except some bacteria) absence of life at depths greater than 150-200 m. the fact that the deep layers of the Black sea is saturated with hydrogen sulphide. In the scheme of currents of the Black sea there are two huge closed cycle with a wavelength of 350-400 km In honor of oceanographer Nicholas Nilovich, who first described this scheme, it was called the “Glasses of the Knipovich” Continue reading
In recent years, studies of the deep sea are very active. However, the oceans keep so many secrets that I reveal have scientists of several generations. There is evidence that to date 99% of the area of the bottom of the oceans of the Earth remain unexplored. However, there are animals, scientists are already open. And most of them boggles the imagination as to their appearance and lifestyle. A large part of deep-sea animals are predators. So, bathysaurus that live in tropical seas, is the predator who has mastered the very deep part of the sea.
He is able to swallow everything that gets in his way. His sharp tongue equipped with teeth, does not give the prey the slightest chance to escape. Bathysaurus not necessary friend of life: nature gave him the genitals of male and female at once. Long and sharp fangs has a fish-Viper. Your teeth that do not fit in the mouth, it is able to kill any prey, but can eat fish larger than themselves: her stomach is stretched if necessary. Continue reading