Genesis 7:2-3, 8-9

Take with you seven pairs of all the clean animals, both male and female, and one pair of all the unclean animals, both male and female. Take seven pairs of flying birds of all kinds, male and female, to make sure they survive on the earth.

Two of each animal, the male and female, clean and unclean, large and small, along with birds and crawling things, entered the ark with Noah as God had commanded.