Cambrian brain is bizarre

 

Image courtesy of Citron, CC BY-SA 3.0. 

Joel Kontinen
Arthropods are invertebrate animals with an exoskeleton body and paired jointed appendages, They trace their supposed evolutionary origins back to the Cambrian Period, and there has been continued debate about the origin of the brain in this speciose group.

 A prevailing view has been that the euarthropod brain was partly composed of ganglia originating from the ventral nervous system. But Strausfield et al. describe the structure of the brain in a lobopodian from the Cambrian that is over 520 million years old, and found that instead the brainScience was already divided into three separate cerebral components even before the assumed evolution of the head. These findings support the conclusion that the cerebral and caudal nervous system evolved differently in this group.

However, God created the cerebral and caudal nervous system of these animals at once, in the beginning of time. 

Source:

Vignier , Sacha. 2022. Cambrian brain origin Science 25 November.