Whether intention is within the competency of irrational animals?

Objections

Objection 1 : It would seem that irrational animals intend the end. For in things void of reason nature stands further apart from the rational nature, than does the sensitive nature in irrational animals. But nature intends the end even in things void of reason, as is proved in Phys. ii, 8. Much more, therefore, do irrational animals intend the end.
Objection 2 : Further, just as intention is of the end, so is enjoyment. But enjoyment is in irrational animals, as stated above (Question [11], Article [2]). Therefore intention is too.
Objection 3 : Further, to intend an end belongs to one who acts for an end; since to intend is nothing else than to tend to something. But irrational animals act for an end; for an animal is moved either to seek food, or to do something of the kind. Therefore irrational animals intend an end.