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Muscles in the back of a 10 week old human embryo’s hand called dorsometacarpales (the two smallest horizontal muscles highlighted at center) will be lost or fuse with other muscles during development. Source: Diogo, Siomava, Gitton.

Ancient Reptilian Hand Muscles Found in Human Embryos

High resolution 3D microscope images have revealed truths about early human development proving human embryos have more muscles than adults! At seven weeks of gestation a human embryo is the size of...
Young chimpanzee. On Right - Human Embryo. Source: Left, Public Domain; Right, CC BY-SA 2.0.

World’s First Human-Monkey Hybrid Created In China

A team of American and Spanish scientists relocated to China to jump European laws and they have created the world’s first human-monkey embryo, in the next step in the controversial breeding of...
How (Most) Humans Lost Their Tails - From Fish to Tetrapods to Apes to Homo Sapiens

How (Most) Humans Lost Their Tails - From Fish to Tetrapods to Apes to Homo Sapiens

Did you know that human embryos early in development have tails that later fail to grow for a lack of signaling from the genes? We end up with the coccyx at the end of our spines that protrudes a bit...