Guest Opinion. Altruism is helping without a benefit and sometimes at a risk to one’s self. Animals helping others of their own species makes sense to perpetuate the species or help continue their own ...

While they don't write love letters, there’s no doubt animals form deep and enduring friendships and use many different ways ...

Does "the animal" exist? Toward a theory of social life with animals / Susan J. Pearson and Mary Weismantel -- Touching animals : the search for a deeper understanding of animals / Nigel Rothfels -- ...