People are not as smart as bugs. The insect world does have tailors. Never underestimate the power of an ant. A human being should be able to change a diaper, plan an invasion, butcher a hog, design a building, write a sonnet, set a bone, comfort the dying, take orders, give orders, solve equations, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly.
Specialization is for insects.
The average chocolate bar has 8 insects' legs in it. Keep your mouth shut when you sleep. The average human eats 8 spiders in their lifetime at night. A cockroach can live nine days without its head before it starves to death. About 2 million people die each year from a disease resulting from a mosquito bite.