Caught right-handed: Mystery of coiling snake embryos explained
Researchers have discovered that snake embryos form a right-handed spiral as they grow, which allows them to hatch with longer bodies. This study, published in Current Biology, explains the biological mechanism behind this unique developmental asymmetry.
Why it matters
Understanding developmental biology in vertebrates provides insights into evolutionary patterns and the fundamental mechanics of animal growth.
edited by Sadie Harley , reviewed by Robert Egan
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Add as preferred source An embryo of Cape house snake (Boaedon capensis) stained to show developing muscle blocks in the trunk. The embryo shows right-handed coiling. Credit: Raul Diaz, California State University Los Angeles An international team led by Canadian researchers has found evidence explaining why snake embryos form a curious spiral. This ability to coil as embryos enables snakes to hatch with the longest bodies of all vertebrates.
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