There are various different causes for rapid breathing which may include infections, pain, heart disorders, dehydration among other causes; a cat’s respiration should be below 30 breaths per minute when at rest but if it is significantly above this rate at rest I would suggest visiting your Veterinarian for an examination to determine a cause. Regards Dr Callum Turner DVM
There are various causes for rapid breathing with pain being a common cause; infections, foreign bodies, heart conditions, allergies among other conditions may also cause rapid breathing. It may be worth trying to get Possum into the bathroom whilst you take a shower to see if the warm humid air helps to open her airway; otherwise we are a little bit stuck for a cause. If the cause was due to a blocked nose, your Veterinarian would have detected that on the physical examination. Regards Dr Callum Turner DVM
The cat staged its first public appearance in 1871, when a Russian Blue was displayed at the Crystal Palace in London, under the name Archangel Cat. In those days, the Russian Blue looked quite different than what we are familiar with today. They were short-haired, solid blue cats with thick, dense, glossy coats. And though they were allowed to compete in the same class as other shorthaired blues, the Russian Blue frequently lost to the British Blue breed, a cat that had caught the fancy of the people.
Savannah cats are created by crossing a house cat with an African Serval. The original hybrid is called an F1 and is considered too "wild" to be a house cat. When you breed an F1 Savannah with another Savannah or another cat breed, the resulting kittens are called F2. Breeding F2 females produces a generation called F3, which still has a considerable amount of Serval genes, but three generations of domesticity. F1 females are retained as breeding stock, although the male hybrids are often infertile. Sometimes F2 or F1 Savannahs are bred with Servals to create Savannahs with a higher number of Serval genes. Or they may be bred with Savannah males of even later generations (F5 or F6). Male Savannahs are usually sterile in the first few generations.

Big cats are very aggressive, and will sprint and chase down their prey. This can range from mobs as small as ants to as large as deer. They will also attack the player if they come within the big cat's range, or if they are provoked. If a big cat is attacked by another mob, it will fight back. Like bears, big cats will attack other mobs when hungry. Once a big cat has made a kill, it will not be aggressive until it gets hungry again. Tamed big cats won't attack each other or other mobs, unless another mob attacks it first.
Russian Blues like their daily routine to be just so, and dislike household changes more than the average cat— and the average cat dislikes household changes a lot. They particularly dislike changes to their dinner schedule, and will make you aware of their displeasure. They are also fastidious about their litter boxes and will complain or may even go elsewhere if they’re not spic and span.
A tigon is a hybrid cross between a male tiger (Panthera tigris) and a female lion (Panthera leo). Thus, it has parents with the same genus but of different species. The tigon is not currently as common as the converse hybrid, the liger.The tigon’s genome includes genetic components of both parents. Tigons can exhibit visible characteristics from both parents: they can have both spots from the mother (lions carry genes for spots—lion cubs are spotted and some adults retain faint markings) and stripes from the father. Any mane that a male tigon may have will appear shorter and less noticeable than a lion’s mane and is closer in type to the ruff of a male tiger. It is a common misconception that tigons are smaller than lions or tigers. They do not exceed the size of their parent species because they inherit growth-inhibitory genes from the lioness mother, but they do not exhibit any kind of dwarfism or miniaturization; they often weigh around 180 kilograms (400 lb).
Anemia is a condition characterised by a reduced number of red blood (also known as erythrocytes) cells in the blood. Is not a disease in itself but a symptom of an underlying condition. It can be due to the premature destruction of the red blood cells, decreased production (due to cancers, kidney disease, certain infections or drugs), blood loss, tumours, blood clotting disorders and parasites such as fleas and hookworm.
The Russian blue is a sweet-tempered, loyal cat who will follow her owner everywhere, so don't be surprised if she greets you at the front door! While she has a tendency to attach to one pet parent in particular, she demonstrates affection with her whole family and demands it in return. It's said that Russian blues train their owners rather than the owners training them, a legend that's been proven true time and again.