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