Groovy! Scientists have found that living on islands makes various “chisel-toothed” rodent species reach epic proportions. Of course, desert islands don’t have that effect (in fact, individuals in dry, arid areas tend to become smaller due to the lack of resource), but on lush, well-resourced islands, many species such as the Deer Mouse can grow bigger than their mainland counterparts. This is a known phenomenon amongst researchers, and is known as the “island rule”.
I wouldn’t call it rodents reaching “nightmareish” proportions though. I’d call it more furry to cuddle!
Full article here.