Make no moose-take, the plural of deer is deer, sans -s (sans is French for ‘without’).
A gander at this lesson will teach you the plural of goose is geese (no pun intended).
Make no moose-take, the only correct plural of moose is moose, sans -s.
Make no moose-take, the plural of ox is oxen.
Make no moose-take, the only correct plural of sheep is sheep, sans -s .
The plural and singular forms of fish is fish, for the most part. Sometimes, fishes also works as the plural form of fish.
One is die, two or more are dice. That said, dice is often used to mean both.