or forearm-balancing asana in modern yoga as exercise with the back arched and one or both legs pointing forward over the head in the manner of the scorpion's tail is called Scorpion pose. Notes References Sources External links American Museum of Natural History - Scorpion Systematics Research Group CDC – Insects and Scorpions – NIOSH Workplace Safety and Health Topic Wenlock first appearances Extant Silurian first appearances