Genesis 1:21 (ESV)

21 So God created the great sea creatures and every living creature that moves, with which the waters swarm, according to their kinds, and every winged bird according to its kind. And God saw that it was good.

The Lord creates abundantly—so abundantly that we read that the water and the air were swarming with life. It is teeming with life. The animals that live in the water are divided into two groups. The first group includes the big aquatic animals like crocodiles, hippos, and whales. Then there are the other smaller animals that also live in the water. The big and the small were all created by God’s voice.