Question

Why catter pillars need to shad their skin when they grow bigger but we human do not

Answer 1

caterpillars are larval forms of insect such as butterfly. caterpillars she'd their skin 3 to 5 times while they grow and this process is called molting. their skin never grows as of human does , so while growing they have to crawl out of their skin when their skin becomes too tight. after first molting they bring new skin cover and in the mean time some caterpillars also eat their she'd old skin . after they grow more then again she'd their skin.

in case of humans shedding of whole skin does Not occur as when human body grows , skin cells also grow. shedding of only dead skin cells occur in human beings.