Question

What will happen I'm I put my hand in an venus flytrap or any other insectivorous plant ?

Answer 1

Poking your finger at a Venus flytrap (Dionaea muscipula) is uneventful. If you put your finger in one of the plant's traps and wiggle it around, you can get the trap to close. No harm will come to you, but you may harm the plant. The leaves that form the trap portion of the flytrap can only close so many times before they die, so stimulating them unnecessarily only serves to hasten their end. Springing the leaves of the plant shut also makes them unavailable for photosynthesis. When told not to touch a Venus flytrap, people often assume it's for their own safety. In truth, this admonishment serves to protect the plant.