The secret to crustaceans and insects belonging to the phylum Arthropoda family are their exoskeleton. Ants, lobsters, hermit crabs, spiders, and beetles are all creatures whose life is made possibly by their exoskeleton body plan. Although humans do not have exoskeletons, but rather endoskeletons, it hasn’t stopped the U.S. Defense Advanced Research Projects Agency (DARPA) in pursing this technology.