New Defender's Study Bible Notes
65:25 the lion shall eat straw. There will be herbivores in the millennial period, as well as in the new earth, if animals are present there (a question which is left unanswered in Scripture). All carnivorous animals will revert to their Edenic state, when they were herbivores (Genesis 1:30).
65:25 not hurt nor destroy. This future state of the animal kingdom is evidently presented as the ideal state. This fact can only mean that there was no struggle for existence and survival of the fittest in the animal world as originally created. The evolutionary scenario, postulating a billion years of animal suffering and death before man evolved, is thus utterly false and even blasphemous, charging God with deliberately creating such a monstrous system as His means of producing men and women. Note also Isaiah 11:6-9.