Human embryos are more muscle-bound than adult humans, new microscope images cataloging early development show. For instance, at seven weeks of gestation, embryonic hands have about 30 muscles. Adults ...
Factinate on MSN
There's a muscle in your body that scientists say serves no purpose, but every human still has it
Run a finger down the center of the forearm, curl the fingers, and flex the wrist. For many people, a thin cord jumps into view, tight as a guitar string under the skin. It feels deliberate, almost ...
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