If Goose meet for a party, they become Geese.
By why aren't many Moose also called Meese?
And more than one Ox somehow become Oxen,
But when a Fox joins his pals, we don't
call them Foxen.
While we're at it-Octopuses or just Octopi?
Hippopotamuses? Hippos? Hippopotami?
The bird Grouse flies with others, and they are termed Grouses.
But a Mouse and his buddies aren't called Mouses?
Many Bison and Sheep are having a ball
Knowing in groups, their names don't change at all.
Fungus and Cactus don't just add "e", "s"-
Oh no! You use "i", adding to the mess!
We can find ourselves entertained at the Zoo,
But thinking about it, are you confused too?
There's no common rule to use for beast groups-
To learn correct terms has us
jumping through hoops.
I imagine he is having a good laugh at us,
Figuring out what to call two hippopotamus.
I am referring of course, no doubt, to the bloke
Who made up different rules as some kind of joke.