Animals are absolutely Earth creations. Animals have a soul. Sometimes people are reincarnated to animals to work out. They feel pain, they feel love and they need care as noone but human can look after them. All animals are envious for human. Have you seen the dog near the fridge looking upper to have a food out of it? They don’t have hands, they do not wear clothes.
In the heaven there are almost no animals. There are only cat’s, birds, fallow-deers, squirrels and several others in the Heaven. They are empty, without a soul. Some animals though can join heaven in human form.
It is not God’s profushion to give life to a soul in animal in the Heaven. It is little bit derision over the soul to send it to an animal body.