Likely large roof rats or wharf rats. They get rather large, perhaps larger than you thought a rat would be.
A gopher
nezumi (rat) wa honyuu-rui (mammal) des.
a rat.
yes
Yes it is
No because a mouse looks like a rat but it isn't a rat isn't it?
Capybara
The rat can be classified as mammal.
it looks like a drowned rat
a rat
It is a rodent.