"Then God said: Let the water teem with an abundance of living creatures, and on the earth let birds fly beneath the dome of the sky. God created the great sea monsters and all kinds of crawling living creatures with which the water teems, and all kinds of winged birds. God saw that it was good, and God blessed them, saying: Be fertile, multiply, and fill the water of the seas; and let the birds multiply on the earth. Evening came, and morning followed—the fifth day."
-Genesis 1: 20-23
Tip o' the hat to New Advent.