All vertebrates have a common ancestor, so the process of development from egg to embryo is the same for both humans and fish.
For more information: https://science.unctv.org/content/model-fish or https://www.nccu.edu/news/index.cfm?ID=8B17CF3D-C6C7-9D17-F021A2C04430B0B8

All vertebrates have a common ancestor, so the process of development from egg to embryo is the same for both humans and fish. Using the ghostly transparent strand of zebrafish, researchers at North Carolina Central University’s lab at the North Carolina Research Campus are able to test hypotheses on a fish instead of a human. Zebrafish are important to researchers because the genes are similar to humans. Scientists can also watch the cells divide and form different parts of the body because zebrafish eggs are clear and grow outside of the mother’s body. Scientists can color different types of cells, proteins, enzymes and other items so they can see what happens to the fish if a cell is removed or destroyed. At the same rate researchers at North Carolina A&T University’s Center for Excellence in Post Harvest Technologies want to understand the chemical profiles of each type of ginger and how the body processes them. The zebrafish is the key to understanding the effects and combining these two studies. Watch how two sets of academic researchers better understand therapies and cancers by using this model organism.

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