Choose aquarium fish
As a rule, the aquarium contains several species. Therefore, in the first place, choosing fish for the aquarium aquariums it is necessary to consider the conditions of feeding and the…

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Fishing for predatory fish
Walleye is a fish that belongs to the family percidae. The weight of this large predator in good conditions can reach 20 pounds. And at length it can grow up…

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Amazing marine life
The Dumbo Octopus. Is the name of this animal has received due whoodini formations protruding from the top of his head which resemble the ears of disney's Dumbo the elephant.…

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man

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Sharks

Sharks are one of the most formidable inhabitants of the ocean. The lack of bone tissue and Gill covers, especially the structure of scales, and many other features of the structure speak of their ancient origin, as confirmed by paleontological data the age of the first fossil remains of sharks is determined approximately 350 million years. Despite the primitiveness of the organization, shark — one of the most perfect predatory fish of the ocean.

Over a long period of existence they managed to adapt perfectly to life in the water column and now successfully compete with bony fish and marine mammals. Unlike bony fish sharks and rays don’t spawn and lay their large, covered with a Horny shell eggs or give birth to live young.

The highest values reach whale (up to 20 meters) and the so-called giant shark (up to 15 meters). Both these and others, like baleen whales, they feed on planktonic organisms. Wide and gaping jaws, these sharks move slowly in the midst of clusters of plankton and filter the water through Gill openings covered by a network of special outgrowths of surrounding tissue. Giant shark profiltruyte an hour to one and a half thousand cubic meters of water and remove all organisms larger than 1-2 millimeters. Continue reading

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Black tuna (Thunnus atlanticus)
Black tuna is a small predatory fish in the scombridae family. Has the smallest size among all species of tuna: a maximum of 100 cm in length (average 50 cm)…

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The pond at the dacha with his hands, gardening, Babysitting.
The pond near her house or in her own yard, the cherished dream of any city dweller. Relax in the gazebo by the pond on a hot summer day -…

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