We have animals living in our house and sometimes in our backyard

It hit me yesterday how strange it is that we have animals that live in our house. 4-legged creatures that are hairy and they walk around and lay around the house all day. Our dog Timber was laying across Jessica's lap and I thought it was so strange that an animal was sitting on my wife. I thought I had forgotten about it until I went out to mow the grass today. It's obvious that we have animals living in our backyard. It's like a mine field. You could lose a shoe back there.