Red-tail catfish, or Phractocephalus
Practieal, or redtail catfish is a beautiful fish, but very large and predatory. In order to contain such a catfish, you should have an aquarium of at least 500 liters.…

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Sharks in Turkey
Turkish beaches are some of the most popular holiday destinations among Russians. However, in recent years several rumors about the shark attack in Turkey scare potential tourists, get them thinking…

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Sharks: The story of a bookplate

Ten years ago, on the island of Sipadan in Malaysia, I took a picture of my first shark. It was almost certainly a shark-Zebra, Stegostoma fasciatum. The current was carrying us along sheer walls, and she, mysterious and beautiful, gleamed in the distance. My heart jumped to somewhere in the Adam’s Apple, I quickly raised the camera and took this blurry picture.

Shark-Zebra

The shark disappeared into the depths, and I got a new hobby — a passion for cartilaginous fish. Have devoted a considerably long time, wrote some articles , even led a couple of sections in Wikipedia. Traveled to different corners of the planet to dive with them.

Of all the sharks I liked Fox, or as she is known in English, thresher. She is like a shark-Zebra with long tail and harmless disposition. Graceful, smooth and swift. Without the aura of celebrity, without the reputation of a ruthless killer. So to speak, a humble toiler of the ocean depths.

Thresher shark (Alopias vulpinus, Thresher shark). Illustration from the book “A field guid to the sharks of the world” Continue reading

Ornamental pond


Make the pond at the dacha with his hands can any modern inhabitant of the metropolis. And this does not need to resort to heavy construction equipment. The material describes how to make a pond on the site with the help of finished plastic containers and plastic film. Before making a pond in the garden need to carefully plan its development, and bookmarks.

How to make a pond from a film on a plot in the garden?
With the flexible coating to really bring to life most daring idea, maybe only slightly adjust its size in accordance with the actual width of the roll of film or butyl rubber, so there were no big scraps, because the cost of these materials is quite high. We offer you to learn how to make a pond with his own hands using locally available materials.

When choosing a location, before you make a garden pond with your hands, make sure that most of specific points of the plot it looked great, but on its surface one could see an interesting reflection not only of clouds, but the house and plants. Continue reading

10 facts about the Black sea

In honor of the coming of the pores of the holidays we offer to your attention a selection of interesting facts about the Black sea.

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.

1. 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.

2. 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.

Nikolay Knipovich

3. 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 Nikolai Knipovich, who first described this scheme, it was called the “Glasses of the Knipovich” Continue reading

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Yellow snail aquarium
Yellow snail aquarium – more stupid title to come up with couldn't so today let's talk about aquarium snails – Apple snails. And again, all the best was written to…

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Dwarf catfish cat catfish and marine pennant
Dwarf catfish-the cat belongs to the group of North American catfishes, known as steers, which differ from congeners rounded tail fin. The fish is slender, brownish-mottled with lighter belly. Anal…

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