Kuuby are a special species of Pokémon that don't seem to have a specific habitat they stay in. They're often found floating around in random places without a care in the world. 

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They're very easily startled and will scorch that what startled them, so Kuuby have to be treated with care. The flame coming out of their exhaust tale is said to be as hot as the sun, yet doesn't seem to radiate the area around it in heat unless Kuuby wants it. This fire comes from inside Kuuby, where there is said to be a core of pure fire. Because of this weird biology, many professors believe Kuuby is not even native to our world, which would explain the lack of natural habitat.

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Kuuby prefers the path of pacifism, but can hold its own very well if it has no other choice. The flame can melt through reinforced steel without problem, leading many other Pokémon to be extremely careful. For whatever reason, Kuuby prefers to attack with its head recklessly.