the.com/exoskeleton
Nature's solution to backbones: wear your skeleton like armor and skip the orthodontist.
means A hard external structure that supports and protects an animal's soft insides, worn on the outside instead of within.
from From Greek exo (outside) plus skeletos (dried up), coined in the 1840s when biologists realized insects keep their crunch on the surface.
Growth problemCan't expand, so owners must molt to grow.
MaterialMostly chitin, the same stuff in fungal cell walls.
Size limitSquare-cube law keeps giant insects safely fictional.
Human versionRobotic exosuits now help paralyzed people walk again.