Survival of Friendliness

Friendliness can be a selfish strategy that benefits individuals in various species, leading to healthier lives and more offspring. While some relationships, like that of the cleaner wrasse and predatory fish, may seem purely transactional, others, like those with dogs, illustrate deeper connections where friendliness truly pays off. The discussion highlights how social interactions can enhance well-being, blurring the lines between self-interest and genuine friendship.