When God made fish and told them to be fruitful and multiply, He gave some of them very special abilities so that they could do this. Some 23 families of fish actually change from females to males or from males to females, to help their species reproduce.
Imagine that you want to catch some fish, but all you see before you is dry sand. It hasn’t rained in some time, and there is no sign of life. Now imagine that you also have a large tanker truck of water. So you pump the water out of the tanker and let it run into a depression in the sand. Let’s say it takes you ten minutes to shut off the water and pull a net from the front seat. By the time you get to the small pool you’ve created, you can net fish.
When scientists finally learn how to make ceramics that can endure high temperatures and conduct electricity without resistance, they may have to thank the sea urchin for teaching them how to do it.