A group of geese is called a gaggle. A group of ravens is called a murder. A group of officers is called a mess. A group of larks is called an exaltation. A group of owls is called a parliament.
Reindeer milk has more fat than cow milk.
It seems that cows are grazing animals. They pretty much like to graze on grass. Grass is found on the ground in the cows' pastures. These things, unlike grass, do not sit well in a cows digestive system. These magnets stay in the cows' stomachs their whole life.