1. God said, of every type of animal.
This means, of the lions, sabertooths, tigers, cheeta's etc... only one pair of the "cats" species was taken.
This also counts for all the other animals
2. He didn't catch them. God brought them to Noah.
And before you ask, the animals didn't eat eachother because all animals were plant eaters.
The meat eating only began after the flood.
Michael