A moose has twins at least every 3 years and a moose having twins is also pretty rare but does happen quite often.
Most moose have just one moose when they give birth but every 3 years or so the moose has twins.
A male moose is called a bull.
Male moose which are called bulls have massive antlers.
A male moose or bulls antlers can grow up to 6 feet (1.8 m)wide from tip to tip.
Some people just refer to a male moose as a moose but they are also known as a bull in their locations.
In the USA and the states a bull refers to a male cow but in Alaska a bull refers to a male moose.
A female moose is called a cow.
In the USA a cow is a different type of animal but in Alaska the female moose is a cow.