The total amount of work is reduced.
Each individual splits its time among many jobs.
Different individuals specialize on different jobs.
Each task is broken up into smaller parts.
Egg » Pupa » Larva » Adult
Egg » Larva » Adult
Egg » Larva » Pupa » Adult
Egg » Pupa » Adult
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Larva
Pupa
Egg
Adult
Their big brains
Their speed
Their small size
Their social behavior
Vision
Vibration
Sound
Touch
Chemicals