And is not reasoning intelligence eclipsed by animals in their provision for atmospheric changes?  Do we not see sheep, when winter is approaching, devouring grass with avidity as if to make provision for future scarcity?  Do we not also see oxen, long confined in the winter season, recognise the return of spring by a natural sensation, and look to the end of their stables towards the doors, all turning their heads there by common consent?  Studious observers have remarked that the hedgehog makes an opening at the two extremities of his hole.  If the wind from the north is going to blow he shuts up the aperture which looks towards the north; if the south wind succeeds it the animal passes to the northern door. Ar., Hist. An. ix. 6.  περὶ δὲ τῆς τῶν ἐχινων αἰσθήσεως συμβέβηκε πολλαχοῦ τεθεωρῆσθαι ὅτι μεταβαλλόντων βορέων καὶ νότων οἱ μὲν ἐν τῇ γῇ τὰς ὀπὰς αὑτῶν μεταμείβουσι οἱ δ᾽ ἐν ταῖς οἰκιαις τρεφόμενοι μεταβάλλουσι πρὸς τοὺς τοίχους.  What lesson do these animals teach man?  They not only show us in our Creator a care which extends to all beings, but a certain presentiment of future even in brutes.  Then we ought not to attach ourselves to this present life and ought to give all heed to that which is to come.  Will you not be industrious for yourself, O man?  And will you not lay up in the present age rest in that which is to come, after having seen the example of the ant?  The ant during summer collects treasures for winter.  Far from giving itself up to idleness, before this season has made it feel its severity, it hastens to work with an invincible zeal until it has abundantly filled its storehouses.  Here again, how far it is from being negligent!  With what wise foresight it manages so as to keep its provisions as long as possible!  With its pincers it cuts the grains in half, for fear lest they should germinate and not serve for its food.  If they are damp it dries them; and it does not spread them out in all weathers, but when it feels that the air will keep of a mild temperature.  Be sure that you will never see rain fall from the clouds so long as the ant has left the grain out. ὑετοῦ ποιεῖται σημεῖον ὁ ῎Αρατος ῾ἢ κοίλης μύρμηκες ὀχῆς ἐξ ὤεα πάντα θᾶσσον ἀνηνέγκαντο.᾽ καίτινες οὐκ ὠ& 129· γράφουσιν, ἀλλὰ ἵνα τοὺς ἀποκειμένους καρποὺς ὅταν εὐρῶτα συνάγοντας αἴσθωνται καὶ φοβηθῶσι φθορὰν καὶ σῆψιν ἀναφερόντων, ὑπερβάλλει δὲ πᾶσαν ἐπινοιαν συνέσεως ἡ τοῦ πυροῦ τῆς βλαστήσεως προκατάληψις.  Plut. ποτ. τῶν. ζ. κ.τ.λ. 725.