What causes the evolutionary distance between woodrats (Family Cricetidae) and the common house rat (*Rattus rattus*)?

Answer

They belong to different taxonomic families, Muridae and Cricetidae

The evolutionary distance between the woodrat genus *Neotoma* and the common house rat (*Rattus rattus*) stems from their placement in entirely separate families within the Order Rodentia. Woodrats, along with voles and hamsters, belong to the Family Cricetidae, which is characteristic of many New World rodents. In contrast, the common house rat belongs to the Family Muridae, which primarily encompasses Old World rats and mice. This separation occurred much earlier in their respective taxonomic histories. The development of similar traits, such as nest building or a rat-like appearance, between these groups is attributed to convergent evolution, meaning they developed these features independently due to similar ecological pressures rather than inheriting them from a recent shared ancestor.

What causes the evolutionary distance between woodrats (Family Cricetidae) and the common house rat (*Rattus rattus*)?
taxonomyanimalclassificationrodentwoodrat