“a conchospiral is a specific type of 3D spiral on the surface of a cone (a conical spiral), whose floor projection is a logarithmic spiral”. Named after conches by 19th c biologist, I wondered “how do conch make a logarithm shell?” Starts while still in the SPHERICAL eggs! ah!

“a conchospiral is a specific type of 3D spiral on the surface of a cone (a conical spiral), whose floor projection is a logarithmic spiral”. Named after conches by 19th c biologist, I wondered “how do conch make a logarithm shell?” Starts while still in the SPHERICAL eggs! ah!

Eggs come out of the mother in a long spiraling tube containing hundreds to thousands of eggs

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