peek at solution solve puzzle
quality: difficulty: solvability: line logic only
Puzzle Description:
Hammerhead Shark (Sphyrnidae). The distinct hydrodynamic "hammer" head shape is called a cephalofoil. From a Creative Commons image by wsnaccad, sourced from PhyloPic.org.
#1: sdubois (sdubois) on Apr 6, 2018
Enjoying this series. Liked your fossil series as well.
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