Before revision: upright=1.2|Endoskeleton of a swordfish An endoskeleton (From Greek ἔνδον, éndon = "within", "inner" + σκελετός, skeletos = "skeleton") is an internal structural frame (skeleton) of an animal, usually composed of mineralized tissue .
After revision: and overlaid by soft tissuesupright=1.2|Endoskeleton of a swordfish An endoskeleton (From Greek ἔνδον, éndon = "within", "inner" + σκελετός, skeletos = "skeleton") is an internal structural frame (skeleton) of an animal, usually composed of mineralized tissue .