It was only after the Flood that God allowed the eating of meat (Gen. 9:3). If it were the case that both man and animals were vegetarian prior to the Flood, then sharing close quarters on the ark would not have presented a problem.

The Bible does not specify that Noah had to take adult animals onboard the ark. While many would argue that dinosaurs would have been too large to fit on the ark, we must bear in mind that there are some mysteries that God’s Word does not reveal. For instance, why couldn’t Noah have taken juveniles? Consider: they take up less space, eat less food, produce less waste, and you don’t have to worry about reproductive problems? Also, not all dinosaurs were massive in size.

So could dinosaurs have been on the ark with Noah and his family? Absolutely! (Brad Harrub, Think, Aug. ’07)

“Then the LORD said to Noah, “Come into the ark, you and all your household, because I have seen that you are righteous before Me in this generation. You shall take with you seven each of every clean animal, a male and his female; two each of animals that are unclean, a male and his female; also seven each of birds of the air, male and female, to keep the species alive on the face of all the earth” (Gen. 7:1-3).