Sturgeons belong to a class of fish that has 20 different species in Euope, Asia and North America. They spend most of their lives in seas, and in certain seasons gather in rivers. There exists no difference between sturgeons that lived 156 to 150 million years ago and those alive today. The fossil record reveals that ancestors of fish were fish, ancestors of birds were birds, and ancestors of human beings were entirely human. In other words, all living beings appeared with their distinctive and perfect structures. The Almighty God created them.