You call an inch worm an inch worm because when it crawls it only extends an inch. The body length of an inch worm is an inch. That is why is it called an inch worm.
Worms are Hermaphrodites. They neither are male or female. Arthur: It's in times like these that I really should've listened to what my mother told me when I was young... Ford: Why, what did she say?...
They are the larvae of moths of the family geometridae, a large, cosmopolitan group with over 1,200 species indigenous to North America. Also called measuring worms, spanworms, and loopers