lol ... I always love explaining this. I'm Indigenous Canadian, 100% Ojibway from northern Ontario and I fluently speak my Indigenous language, it's my first language before English.
The Ojibway word for moose is ..... moose .... (it's an Indigenous word that hasn't changed)
The Ojibway word for the plural of moose is ... moosuk
I really like this, and I think moosuk really encapsulates the feeling of stumbling across more than one moose in the wild, but the last thing English needs is another standard for pluralization.