Oh, Rats! by Miriam Allen DeFord - Orthedrin, maxiton and glutamic acid—they were the prescription that made him king of his world!
SK540, the 27th son of two very ordinary white laboratory rats, surveyed his world.
He was no more able than any other rat to possess articulate speech, or to use his paws as hands. All he had was a brain which, relative to its size, was superior to any rat's that had hitherto appeared on Earth. It was enough.
In the first week of gestation his embryo had been removed to a more suitable receptacle than the maternal womb, and his brain had been stimulated with orthedrin, maxiton and glutamic acid. It had been continuously irrigated with blood. One hemisphere had been activated far in excess of the other, since previous experiments had shown that increased lack of symmetry between the hemispheres produced superior mentality. The end-result was an enormous increase in brain-cells in both hemispheres. His brain showed also a marked increase in cholinesterase over that of other rats.
SK540, in other words, was a super-rat.