LEB(i)
2 From all the clean animals you must take for yourself ⌊seven pairs⌋,* a male and its mate. And from the animals that are not clean you must take two, a male and its mate,
3 as well as from the birds of heaven* ⌊seven pairs⌋,* male and female, ⌊to keep their kind alive⌋* on the face of the earth.