Comparative Development of Embryos

Comparative Development of Embryos

Did you know that the embryos of fish, birds, and humans all look surprisingly similar in their early stages? This is because many animals share common ancestors, and these similarities during development provide important evidence for evolution. By studying h...

Embryology is the study of how animals develop before birth. By studying embryos, scientists can find clues about how different species are related to each other.

For example, at the earliest stages, embryos of fish, birds, and mammals look so alike that it’s hard to tell them apart.

As they grow, some unexpected features appear. For...