Shark egg sac - "Mermaid's purse"
A human embryo at 7 weeks gestation (Image: Ralph Hutchings / Visuals Unlimited / Getty)
A 6 week old human embryo.
Papier Mache gynecological model after Dr Louis Auzoux c 1880
Human Carnegie stage 10-23.jpg
These odd-looking creatures are, in fact, two-day-old zebrafish larvae, as seen through a scanning electron microscope.
These are the pharyngeal gills or arches of a human early in development. http://php.med.unsw.edu.au/embryology/index.php?title=Pharyngeal_a...
Medical - Embryology - Haeckel (6)
– Haeckel Embryology – Color plate 04 | Vintage
Medical - Embryology