In the Book of Genesis, Noah brought seven pairs of each clean animal onto the ark.
Genesis 7:2 distinguishes clean animals from animals that were not clean. Noah is instructed to take seven pairs—male and female—of clean animals, but only one pair of animals considered unclean. The passage gives no modern zoological definition of “clean”; the category belongs to the ritual system presented in the Hebrew Bible.
A common mix-up is that many retellings say Noah took two of every animal. That summary reflects the one-male-and-one-female instruction in Genesis 6:19–20 and the unclean-animal instruction in Genesis 7:2, but it omits the special number for clean animals. The text also does not list every species by name.
This detail is part of the biblical flood narrative, not a zoological inventory. Different religious traditions interpret the passages differently, so the safest answer depends on the wording of the question: Genesis 7:2 gives seven pairs for clean animals.