Studies in Genesis 1
And God saw that it was good.
And God blessed them, saying, “Be fruitful and multiply and fill the waters in the seas, and let birds multiply on the earth.”
And there was evening and there was morning, the fifth day. (Genesis 1:21-23 ESV)
If we accept the archeological evidence on its face, without adding any theory as to how animal life came into existence, then we can draw several inferences. First, a massive number of species of marine animals came into existence over a relatively short period of time almost 500 million years ago. Somewhere between 150 and 200 million years ago birds came on the scene. These times are assumed because no one was there and there is no physical evidence of shorter timeframe. Everything looks old.
Whatever the dating used the circumstantial evidence suggests a long period of time between the first marine animals and birds. How much difference for us is there between hundreds of millions of years and simply millions of years, or even shorter thousands of years?
Next, these animals reproduced, lived and died. Their lifespan was not long but short. While some trees live for thousands of years most plants live only a single or a few seasons. So, too, the animal life which filled the Earth lived for a relatively short time, during which time they reproduced and then died.
Next, the circumstantial evidence suggests some of the animals ate other animals. God did say He gave the plants and fruits for food. This does not preclude some animals eating plants and other animals. Whales open their mouths and scoop anything in the way.
And God said, “Behold, I have given you every plant yielding seed that is on the face of all the earth, and every tree with seed in its fruit. You shall have them for food. And to every beast of the earth and to every bird of the heavens and to everything that creeps on the earth, everything that has the breath of life, I have given every green plant for food.” And it was so. (Genesis 1:29-30 ESV)
Finally, the evidence tells us not all species of animals which originally appeared so long ago are still in existences. Many species have become extinct.
Most people hold a theology which demands death not happen until after the sinful disobedience and fall of Adam. Yet, there is Scriptural evidence and physical evidence death was known by God and accounted for in creation. From the beginning there was “darkness” before God instituted “day” and “night.” Both “darkness” and “night” suggest physical death and dying and the possibility of spiritual “death” and “dying.” It would appear physical “death,” a beginning and end, is a natural part of creation. God exists outside of space time creation, began creation at His discretion and will end creation by His authority.