Love is not human, love is universal. I spend many hours a day with other animals, and their lives are as dependent on love as ours. Baby chicks are bathed in love from the moment they are hatched until their mother decides they are old enough to be on their own. Without such constant love, they would have gone extinct eons ago.
Our cats, Woody and Rusty, are best friends, and often spend cozy afternoons snuggling together. Loving and being loved is as important to them as it is to us.