Darwin and Animal Models

An article in new scientist reported how Darwin was one of the first to realise the importance of the early embryology of animal models and how they can contribute to our knowledge of human development. The full article can be found at: 

https://www.newscientist.com/article/mg20427343.300-origin-of-species-revisited-mutual-affinities-of-organic-beings-morphology-embryology-rudimentary-organs.html