Without a doubt, we all adore our household Pets, especially lucky in this respect cats and dogs. In the United States alone is home to over 86 million pet cats and 74 million dogs, while in Canada, about 35% of the local population is a happy dog owners and 38% of cat owners. But don’t forget about other household inhabitants: today, the third place firmly in aquarium fish, with more than 170 million individuals imprisoned in aquariums, followed closely by horse – over 15 million of these wonderful animals officially registered in the United States. But there are also people who yearn to stand out from the crowd. They have houses you can find the most exotic and expensive animals, which many have not even heard.
10. Bengal male $ 3,000 a Bengal cat was born as a result of a long process of crossing domestic Shorthair black cats and Asian leopard. The purpose of this cross-breeding was to obtain a cat of medium size with the normal behavior of the domestic cat, but still retained the color of a leopard. It took to cross up to five generations to get a Bengal cat that meets all these requirements.
9. Snow macaque – 3 $ 500 Snow macaque is a smaller Primate with a life span of up to 30 years. They became widely investibility their bald red face. The view at the moment is under threat of extinction. At home the behavior of these macaques Continue reading
We’ve learned that the relationship determines the resemblance: is it fair to expect a couple blue-eyed blondes have the same blonde kid with eyes of heavenly color. However, the nature of the known and far more intricate family ties. Quite often, ties of blood unite the species, do not resemble each other neither in outward appearance nor the way of life. Introducing animals that you would never have thought that they were siblings.
Already for anybody not a secret that whales and dolphins, although looks very similar to fish, are mammals. They breathe air, feed their young milk, and their tails are fused hind limbs. It is not surprising that scientists have searched for the ancestors of cetaceans among land animals. For a long time it was believed that their ancestors were mezonigie is curious of the extinct mammals that unites the signs of carnivores (eat meat) and ungulates (instead of feet had hooves). However, recently it was revealed that the closest relatives of whales and dolphins are hippos the representatives of the group of ungulates that includes pigs, camels, giraffes and deer. As shown by genetic analysis that whales and hippos there is a common ancestor that lived 50-60 million years ago. The degree rodstvenikam great that it was even proposed to create a common squad cytopathicity.
As you know, “born to crawl — can not fly”. But for nature there are no rules. Albatrosses and petrels — the true kings of the sky. Continue reading
Pathogen — neorickettsia (chlamydia), in their evolutionary development they are between bacteria and viruses.
The source of infection is often a sick bird — a virus carrier, releasing the microorganisms from nasal mucus, sneezing, coughing, with the dung. Infection occurs by airborne and alimentary, particles of dried droppings from sick birds, downs, slomannye the epithelium of the skin can get into the lungs, air sacks of birds and gastro-intestinal tract and there penetrating through the mucous membranes, causing the disease. A bird ill with psittacosis, usually for a long period of time remains a virus carrier.
Reservoir and source of infection for humans are domestic and wild birds. The largest epidemiological significance have Pets poultry (especially ducks and turkeys), room birds (parrots, wavy parrots, Canaries and other small songbirds) and especially urban pigeons and crows, the infestation of which ranges from 30-80%.
Ill persons who are constantly in contact with birds (poultry workers, meat processing plant, breeders of birds, etc.) the Ill person primarily middle-aged and older, children get sick much less often. Patients with psittacosis not a danger to others represent. In the human body, the pathogen enters mainly through the mucous membranes of the respiratory system. Infection occurs by inhalation of dust containing chlamydia (dried particles of bird faeces and discharge from the beak, contaminated particles down, etc.). Continue reading