Dark Gray Insect-Like Crawler With Many Legs

Puzzle 8 of Solving a Mystery Easy Pack

Question is: Dark Gray Insect-Like Crawler With Many Legs

and the answer is: MILLIPEDE

Word Meaning:

MILLIPEDE — Any of many elongated arthropods, of the class Diplopoda, with cylindrical bodies that have two pairs of legs for each one of their 20 to 100 or more body segments.

Definitions from Wiktionary.