According to Genesis, what kind of animals entered the Ark in groups of seven pairs?

According to Genesis, clean animals entered the Ark in groups of seven pairs.

Genesis 7:2 instructs Noah to take seven pairs of every clean animal, while one pair of every unclean animal is mentioned in the same instruction. The passage distinguishes the categories rather than describing every species individually.

Genesis 7:3 separately mentions seven pairs of birds, described as male and female, to preserve their kinds on the earth. This creates a detail often omitted from simplified summaries that say only that Noah took two of every animal.

Translations differ in how they phrase the clean-animal number, including “seven pairs” and “seven of each kind.” The important contrast in the passage is between the larger number for clean animals and the single pair for unclean animals.