I am interested to know if there were cockroaches on Noah's ark?
I was asked this question by someone and didn't have the answer.
Apparently, 2 cockroaches were on the ark. Breishit (Gen.) 6:20 mentions "all that crawls on the land". I would include insects in that category.
Apparently, they made it out of the ark alive, too as Breishit 8:17 implies. Miraculous that the elephants didn't squash them and the cats didn't eat them :-)