It's Experiential and obviously Perceivable that some dogs, some hens and some humans are morally, emotionally and intellectually matured ( at par) and compatible as family, friends and companions.
Job 38:36, Bible old testament NIV, God gives Understanding to the Cock. ( Understanding is an Intangible, spiritual soul Attribute). New Testament Bible, Gospels: Jesus says that His Love Affection is akin A Mother Hen's ( Affection Love is an Intangible spirit soul Quality; Family is based upon Spiritual (not necessarily Physical) Affiliations of Affection, irrespective of species, lineage)