|Adult fish, chickens, dogs, and lizards don't look much like humans. So why do these embryos look so much alike? The basic design of all these animals is more similar than you might think.||Since all vertebrates (animals with backbones) evolved from a common ancestor, the genetic information that guides their development is nearly the same. That's why scientist can learn about human development by studying other organisms--including zebrafish.|
This exhibit was developed with support from the Genentech Foundation for Biomedical Sciences.
Embryo photos courtesy of Dr. Michael Richardson and Dr. Ronan O'Rahilly, St. George's Hospital Medical School, U.K., and Dr. Charles Kimmel, University of Oregon.