But notwithstanding this natural Love in Brutes is much more violent and intense than in rational Creatures, Providence has taken care that it should be no longer troublesome to the Parent than it is useful to the Young:  for so soon as the Wants of the latter cease, the Mother withdraws her Fondness, and leaves them to provide for themselves:  and what is a very remarkable Circumstance in this part of Instinct, we find that the Love of the Parent may be lengthened out beyond its usual time, if the Preservation of the Species requires it; as we may see in Birds that drive away their Young as soon as they are able to get their Livelihood, but continue to feed them if they are tied to the Nest, or confined within a Cage, or by any other Means appear to be out of a Condition of supplying their own Necessities.

This natural Love is not observed in animals to ascend from the Young to the Parent, which is not at all necessary for the Continuance of the Species:  Nor indeed in reasonable Creatures does it rise in any Proportion, as it spreads it self downwards; for in all Family Affection, we find Protection granted and Favours bestowed, are greater Motives to Love and Tenderness, than Safety, Benefits, or Life received.

One would wonder to hear Sceptical Men disputing for the Reason of Animals, and telling us it is only our Pride and Prejudices that will not allow them the Use of that Faculty.

Reason shews it self in all Occurrences of Life; whereas the Brute makes no Discovery of such a Talent, but in what immediately regards his own Preservation, or the Continuance of his Species.  Animals in their Generation are wiser than the Sons of Men; but their Wisdom is confined to a few Particulars, and lies in a very narrow Compass.  Take a Brute out of his Instinct, and you find him wholly deprived of Understanding.  To use an Instance that comes often under Observation.

With what Caution does the Hen provide herself a Nest in Places unfrequented, and free from Noise and Disturbance!  When she has laid her Eggs in such a Manner that she can cover them, what Care does she take in turning them frequently, that all Parts may partake of the vital Warmth?  When she leaves them, to provide for her necessary Sustenance, how punctually does she return before they have time to cool, and become incapable of producing an Animal?  In the Summer you see her giving her self greater Freedoms, and quitting her Care for above two Hours together; but in Winter, when the Rigour of the Season would chill the Principles of Life, and destroy the young one, she grows more assiduous in her Attendance, and stays away but half the Time.  When the Birth approaches, with how much Nicety and Attention does she help the Chick to break its Prison?  Not to take notice of her covering it from the Injuries of the Weather, providing it proper Nourishment, and teaching it to help it self; nor to mention her forsaking the Nest, if after the usual Time of reckoning the young one does not make its Appearance.  A Chymical Operation could not be followed with greater Art or Diligence, than is seen in the hatching of a Chick; tho’ there are many other Birds that shew an infinitely greater Sagacity in all the forementioned Particulars.