And the carnivorous evolved animals who currently eat their prey alive while administering great pain, just what kind of morals and selflessness has evolution given them ?
The ultimate irony; evolution gave rise to the very morals it denies.
They show a form of "morality" in their rivalries with one another, and most of all in the solicitude they have for their offspring. The pack instincts of dogs make them a model of the virtue of loyalty. Their hunting behavior was of course their original attraction to men who ardently pursued the same practice. Anyway, I'm pretty sure most carnivores strive to kill their prey before they eat them, as they are a lot more cooperative as a meal when dead.
Note the Pythagoreans were vegetarians on moral grounds. Cf. Ovid Metamorphoses, Book XV, for an imagined discourse of Pythagoras abhoring and warning against the practice of slaughter for food. This is an argument and an appeal, not a divine commandment. He acknowledges carnivores as animals whose nature is "savage and untamed", and hence not models for human behavior.
Religious believers will have the last laugh, if for no other reason than they will still be around, merrily reproducing, long after the liberal atheist evolutionists have extincted themselves through contraception, abortion, gay marriage, and euthanasia.
The hilarious irony of it all is, Dawkins and his ilk who reverence Darwinian evolution with greater fervor than the children of Israel reverenced Jehovah, are slated for annihilation by their own Darwinian god. In strict obedience to his edicts they are strangling themselves with their own hands and leaving the field to the religious infidels they detest.