Marine Aquarium
MARINE AQUARIUM, a vessel for keeping marine animals and plants. Is usually large in size (200 litres), as its inhabitants usually larger than the inhabitants of freshwater aquariums. Compared to…

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Carp in pond of fire. The Archive Forums Of The Open St. Petersburg's Hunter
Spent last weekend with relatives in one of the horticulture of the Luga district of the Leningrad region. With great surprise I heard that in the fire pond gardening there…

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Do the benefits of aquarium fish
Any person may be a legitimate question, but is there any benefit from keeping an aquarium? The answer lies in the fact that he wants to get as this benefit.…

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birds

Sharks

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

The beauty of the underwater world of the red sea
Red sea (Arabian Gulf), which is a magnet for divers of all countries, has a diverse flora and fauna. There are about four hundred species of fish and about eight…

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Bait predatory fish
And don't be surprised, all right, to bait and to bait predators to the place of fishing is not only possible, but necessary. You just have to know and to…

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