Just like we are, in this old age, we are wandering all over the world to see that “Let everyone become happy by Krsna consciousness.” It is not that we love only our countrymen, only Hindus, or Bengalis, or Madrasis, or… No. We love everyone, even the animals. But because human being can understand the Krsna philosophy, therefore we hold meetings of the human being. But still, whenever we get opportunity, we give protection to the animals.

We give them prasadam. We do not prohibit even some animal comes to hear. They also hear some, sometimes. Hearing is there. Everyone can hear. Even they do not understand what is Hare Krsna, if you chant loudly Hare Krsna, even the ants and insect who is hearing, he’ll be delivered, because it is spiritual vibration.

From Srila Prabhupada’s lecture on The Nectar of Devotion — 4 January, 1973