Science ❯ Biology ❯ Anatomy

Nervous System

Ganglia Fossils Optic Nerves Brain Structure Arachnids Arachnid Brain Respiratory System Ventral Nerve Cord Ventral Ganglion

Study Reveals Coiled Optic Nerves Behind Chameleons’ Independent Eye Control

High-resolution microCT imaging preserved intact nerves, revealing extra length that prevents strain during extreme eye rotation.

Greenland Fossils Show Cambrian ‘Squid’ Were Ancestors of Arrow Worms

Cambrian Fossil Reveals Spider Brain Structure and Sea Origin for Arachnids