It's Found Inside of Bones
This page is the CodyCross answer for the clue below from Larger than Life, Group 2149, Puzzle 4 (Tyrannosaurus Rex).
Question is: It's Found Inside of Bones
and the answer is: MARROW
Word Meaning:
MARROW — (uncountable) The substance inside bones which produces blood cells.
Definitions from Wiktionary.