I've never really understood why anyone takes much notice of Ray Comfort, who is, let's face it, a Joo from Godless New Zilland.
He is just plain wrong about the species business, obviously. But he's right about the size of the ark. The Dutch creationist Johan Huibers went to the trouble of building a full-sized replica, according to God's instructions as set out in the KJV, which shows exactly how all the animals would fit. It took him 20 years, but in the end he got there. "If you have faith, anything is possible," he said.