Why do pugs eat grass?

Do dogs regurgitate food? How do lions defend themselves? Why does your house-trained dog now go inside by the cat litter box and beside the toilet? Can a cat survive with only one kidney? How do you safely remove tic from head? How many children can a fox have? What is some baby nimal names? What does each of the four meows mean and which one means what? Can guinea pigs eat persimmon? How old does a male guinea pig have to be to get a female guinea pig pregnant? Do golden retrievers bite? How big do Persian cats get? Do horses have a prehensile lip that allows them to seize grasp and take hold of objects? Are ginger cats mad? How long can you keep sugar in a contanier? If I have a hard bump in my ear lobe does it mean I have MRSA? Is a Deer a Marsupial or a Mammal? What is a baby tiger snake called? What does wail mean? What is the value of a 16 gauge Compeer rabbit ear double barrel serial 395127?