Two by Two

"And God said, 'Let the earth bring forth living creatures according to their kinds-livestock and creeping things and beast of the earth according to their kinds.' And it was so. And God made the beasts of the earth according to their kinds and the livestock according to their kinds, and everything that creeps on the ground according to its kind. And God saw that it was good."
~Genesis 1:24-25~

"...two and two, male and female, went into the ark with Noah as God had commanded Noah...they and every beast, according to their kinds, and every creeping thing that creeps on the earth, according to its kind, and every bird, according to its kind, every winged creature. They went into the ark with Noah, two and two of all flesh in which there was the breath of life."

~Genesis 7:9, 14-15~