Skeleton on the Outside!

Smarty Party! Rattling, clattering, creak and grin, There's a skeleton hiding under your skin! Cats have bones and bats have bones, Fish and birds have bones of their own! Bones on the inside, growing with you: Endoskeleton! Inside! Ooo-ooo-ooo! Skeleton on the outside! Ooo-ooo! Skeleton on the inside! Ooo-ooo! Crabs wear armor, you wear skin, Rattle your bones and let the party begin! Skeleton on the outside! Ooo-ooo! Skeleton on the inside! Boo! Exoskeleton, outside! Endoskeleton, inside! Ooo-ooo-ooo! Crabs and beetles and spiders too Wear their skeletons outside, who knew? Hard as a helmet, made of chitin, Light and strong and a little frightenin'! Exo means outside, give it a shout: Exoskeleton! Outside! The skeleton's out! Skeleton on the outside! Ooo-ooo! Skeleton on the inside! Ooo-ooo! Crabs wear armor, you wear skin, Rattle your bones and let the party begin! Skeleton on the outside! Ooo-ooo! Skeleton on the inside! Boo! Exoskeleton, outside! Endoskeleton, inside! Ooo-ooo-ooo! But armor won't stretch, so what can they do? They grow a soft new skeleton, then wriggle through! Split goes the back, out comes leg and claw, Gulp, gulp, puff! They're bigger than before! They hide for a few days till the new shell's hard, And leave an empty ghost to guard the yard! A cicada leaves a ghost on a tree, Ooo! A snake sheds skin, but its bones stay in, see? Ooo! A turtle's shell? Grown from ribs and spine! Ooo! An octopus? No bones! It squeezes through just fine! Skeleton on the outside! Ooo-ooo! Skeleton on the inside! Ooo-ooo! Crabs wear armor, you wear skin, Rattle your bones and let the party begin! Skeleton on the outside! Ooo-ooo! Skeleton on the inside! Boo! Exoskeleton, outside! Endoskeleton, inside! Ooo-ooo-ooo! Skeleton on the outside! Skeleton on the outside! Boo! Smarty Party Songs! Like, subscribe, PARTY!