He was also deeply fascinated by embryology and illustrated some of the most remarkable comparisons of vertebrate embryos in his day. These images were widely printed and copied, both to argue for ...

Human embryos briefly exhibit traits like tails and gill-like structures, revealing our evolutionary history and deep ...

So, Haeckel proposed, by examining the development of an embryo you could read its entire evolutionary history in the transition from one stage to another. In fact, this isn't strictly true ...

But renowned German biologist and artist Ernst Haeckel (1834-1919) lived and breathed through his microscope, meticulously observing and sketching the silica skeletons of radiolarians and seeing in ...