There are HUNDREDS of SPECIES of Carnivora listed in zoology books today. Noah did NOT have to take HUNDREDS of pairs of Carnivora on the ark. Just 7 pairs MAY have done the trick. Changing from a wolf to a dog is a MINOR change compared to a dog coming from a ROCK (over billions of years of course!). I don't care how many billions or trillions of years they want to imagine it took- animals ALWAYS bring forth after their kind just as the Bible says.

p. 80 - What On Earth Is About To Happen… For Heaven's Sake? (2013)