Christopher Priest opens his review of Rober Sullivan’s Rats: A Year with New York’s Most Unwanted Inhabitants, In thrall to ratdom, with a short description of a recent BBC documentary:
A few years ago the BBC wildlife department broadcast a documentary about the common rat: rattus rattus (black rat) or rattus norvegicus (brown, or Norway rat). The intention was avowedly to study the animal as wildlife, as if rats were the same kind of entity as meerkats or penguins or sea cucumbers or chipmunks. The programme contained the usual breathtaking close-up shots we are now so used to in TV wildlife films: habitat, feeding, mating, reproduction, rearing the young, and so on.The trouble was that this time the programme was about rats. In spite of one’s valiant efforts to try to see the rodents as ordinary animals with, so to speak, a point of view, it remained inescapable that a rat’s habitat is in drains, cellars and burrows, his food is our leftovers, and he and his mate’s reproduction is, well, fast and furious.
Some rat facts:
We are right to be fearful of rats, because they are verminous. They urinate and defecate in places where we keep food and clothes. They go out when it’s dark. They swarm. They gnaw through electric mains cables and gas-pipes, usually with disastrous consequences for themselves, but if they do it beneath your house they put your property and life at risk. As many as a quarter of all fires of unknown origin are thought to be caused by rats. The teeth of a brown rat are stronger, harder, than aluminium, copper, lead and iron. (They also grow prodigiously: a rat’s incisors grow five inches every year, so they don’t worry too much about chipping and breaking their teeth.)Rats are known carriers of diseases that kill mankind: bubonic plague, famously, but also typhus, rabies, trichinosis, tularaemia and the horrific leptospirosis. They carry bacteria, mites, fleas, lice and ticks.
They have sex-lives at which some of us can only marvel. “If you are in New York while you are reading this sentence,” Sullivan says, “or even in any other major city… then you are in proximity to two or more rats having sex.” Male rats can mate with 20 females in a few hours; the gestation period is just three weeks; the average litter is up to 20 pups.