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Snap traps

Snap traps use electricity and hydraulics to prepare and launch their attack

Snap traps 

The snap trap is the most well-known trapping mechanism of carnivorous plants. 
Ingeniously, snap traps use electricity and hydraulics to prepare and launch their attack. Inside the plant, electric pulses track and remember prey movements. With perfect timing, a quick shift of water (hydraulics) within the trap walls causes them to bend and snap!

Sequence of a Venus fly trap snap trap in action

Plants with bite – snap traps

Snap traps activities

  • Identify and list the structural adaptations of the Venus fly trap that enable it to entice and trap prey. 
  • Observe the structural adaptations of the plant. Draw and label a scientific diagram of its snap trap. Label the functions and mechanics of its features.
  • Use puppets and props, such as gloved hands, to create an enactment or video that describes the plant’s adaptations and explains the trapping steps and mechanisms. 
  • Keep a Venus fly-trap in the classroom. Refer to How to care for a Venus fly trap 
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