There are some exceptions to this rule–including in crocodile heads. According to Milinkovitch, the fact that their body scales and head scales develop so differently also sets them apart as animals.
Previously, the team showed that the embryonic development of crocodile head scales, unlike scales of the body, originates from a process reminiscent of the propagation of cracks within a material ...
According to Milinkovitch, the fact that their body scales and head scales develop so differently also sets them apart as animals. Crocodile body scales develop from what scientists call a polka ...