Everyone who ever was fond of scientific and popular works about animals, probably more than once met the stories about the huge pike that supposedly lived several hundred years. The most popular is the history of the so-called “kalbrosky the pike”, which was supposed to have been caught personally by the Emperor Frederick II, marked with a gold ring and released at 1230 in one of the lakes where caught running through 267 years. Despite the seeming plausibility of these stories, today reliably established that all of them should be classified as legends or fishing tales. The maximum age of pike, like most other fish, usually no more than 20-30 years. There are, however, fish are long-lived, and these include fairly common off the coast of Kamchatka Northern sea perch. Continue reading
More than 70 percent of the planet covered by water. Three-quarters of the oceans have a depth of over 800 meters. Here begins the realm of the infinite sea depths beyond our reach.
This unknown world is 90 percent of the habitable space of the planet. We know more about the surface of the moon than about the sea floor. In this eternal darkness, inhabited by strange life forms. Only a few decades ago it was thought that life at these depths is impossible, but today scientists believe that the first life appeared on the bottom of the ocean. Energy, resources, food and even the climate is influenced by oceans. There to decide the future of our planet?
Only with the help of latest technology it is possible to comprehend the mysteries of the deep sea. Deep research is long and expensive, so so slowly, the scientists shed light into the darkness. Costly expeditions to the most modern vessels ply the seas in search of answers. Continue reading
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