How do embryos support the Theory of Evolution?

Answer 1

By monitoring how and what an embryo grows as it matures, you can see a lot of things that you cannot see in a fully grown animal. For instance, human embryos have a tail at certain stages in development. They also surprisingly have gills at one stage. Two of these pairs of gill slits disapear as the embryo grows, and the final pair move upwards to become your eustacian canals and ears. This shows us that humans once had tails and that hundreds of millions of years ago we also had gills, which means that at some point in our past we were once sea dwelling.

Embryology shows that organisms look the same at their earlier stages. This supports evolution. Evolution is the idea that many organisms have a common ancestor, and that is why they have similar traits.


The stages of development of the embryos of different organisms are extremely similar, thereby suggesting common ancestors.