What are Katarines?
Katarines are four-eyed feline mammals that can thrive on air, water, and land. They have adapted to the conditions that they live in and most have traits to the environment that they were born in.
Land Katarines have all Katarine features but are not built to endure high altitudes or water.
Air Katarines are built for land and sky but do not do well with water. They are not very good swimmers and cannot last as long as aquatic Katarines.
Aquatic Katarines are best equipped for the cold waters that surround Calamari Island. They are excellent swimmers and have waterproof feathers. They are not very good flyers but can mostly survive on land.
Katarine Life Stages
Katarines are normally very quick to age. They are fully adults within a year, like most felines.
Kitarines, or kitten Katarines, are blind and deaf at birth. They will nurse from their parents for about a month or so and can move onto soft foods afterward, and soon onto solids. Kits will only be suited for land at this stage, and their gills have not fully developed. At 3+ months old, after they are steady at walking, they can be eased into swimming conditions by introducing them to shallow waters and working their way deeper (deepwater Katarines are an exception, as they are built for underwater navigation.)
As juveniles, some Katarines are aggressive or gloomy due to increased hormones. At this age, they're able to be taught how to fly by their parents/humans but that’s basically it.
As adults, Katarines are basically able to start their own families. Some have "jobs". Overall, the hormones level out and they're able to socialize normally.
Size and Genes
Katarines can be about as big as an average human or be as small as your average domesticated house cat. Although there are 3 distinct types of Katarines, there is one "subtype" of Katarine called Pet Katarines. These Katarines are usually sought after for competitions, fieldwork, or normal domesticated lives. The thing about these Pet Katarines, though, is that they have several health complications. For instance. some Katarines are bred to be in the place of horses (for transportation.) This gives them bad genes (for example, deformities in the spinal area to carry heavy weights or an increased chance of chronic diseases like cardiac arrest or cancer) over time and they will usually be sold if they aren't high quality. Some Katarines are also crossbred with other species, like Skulldogs or Lions. The offspring usually turn out okay, but then again, there can also be bad genetics carried over.
Lifespan
Katarines have no set age/lifespan. It is thought that Katarines cannot die from old age, only life-threatening diseases or physical injuries. If a Katarine DOES die, they go to a place called Limbo. Limbo is described as a place with a purple sky; with a hard, rocky ground with patches of grass, although there are fields for certain Katarines. When a Katarine passes, their own "domain" gets added to Limbo. In Limbo, Katarines have the option to eat or drink/do things necessary to live, although it isn't needed.
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There's nothing here, come back later.
Mango is a Mittumoth, a closed species that is no longer running. 
There are no rules regarding Omen's clonability. Katarines can share the Skullhead trait so long as it is rolled by artists.