Which animal is NOT typically considered a reservoir for rabies?

The answer provided identifies fish as the correct choice because fish are not mammals and therefore do not transmit rabies. Rabies is a viral disease that primarily affects mammals, as the rabies virus is typically found in their saliva and transmitted through bites or scratches.

Cattle, sheep, and pigs, being mammals, are capable of being infected with the rabies virus, although they are not common reservoirs. Traditional reservoirs of rabies include bats and certain wild carnivores like raccoons and foxes, while livestock such as cattle, sheep, and pigs are rarely involved in the transmission of rabies to humans. Fish, on the other hand, lack the necessary biological processes and anatomical structures to harbor or transmit the rabies virus, solidifying them as the clear choice among the given options.