I would argue that nursing human babies make a purring sound as they drink milk from their mother’s breast. That sound evokes a sense of attachment and bonding.
Many times the qualities that we find endearing in pets (for example big eyes) are those that remind us of human babies.
My guess would be that humans (maybe subconsciously) preferred cats that could make purring noises and thus being able to purr conferred a selective advantage to cats.
Many times the qualities that we find endearing in pets (for example big eyes) are those that remind us of human babies.
My guess would be that humans (maybe subconsciously) preferred cats that could make purring noises and thus being able to purr conferred a selective advantage to cats.