Science ❯ Biology ❯ Anatomy

Nervous System

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

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