What's really going on inside an insect-munching Venus flytrap

Venus flytraps rarely catch flies, despite their name. Instead, spiders and ants make up most of their diet. When a victim walks by and brushes against a trigger hair on the inside of the trap’s modified leaves, it sets off an electrical signal. If the bug doesn’t escape within 20 to 30 seconds, the trap slams shut faster than you can blink!