Cat Scratch Fever
Nature, beautiful but deadly! Cats in particular, they're killing machines. From the bacteria they store under their claws to their lightning quick reflexes. And it turns out they have parasitic properties, too.. Toxoplasma gondii is a nasty parasite that originates only from cats. Parasites form a non-mutually beneficial relationship with their host, not killing them but feeding off their life essence. Apparently, parasites used to only refer to creatures visible to the naked eye, but now include microscopic critters. Not sure when the definition changed, I'm guessing around the time the microscope was invented. Anyway, cats are the only hosts within which toxoplasma can sexually reproduce to complete and begin its lifecycle, spreading to humans and virtually all other warm-blooded animals. In non-sciencey terms, it begins with a cat eating a mouse or some other animal already infected with the parasite. Then, in the cat's intestines, a hotbed of a...