The Venus flytrap (Dionaea muscipula) is a carnivorous plant that traps insects using a pair of hinged leaves. When an insect triggers the hairs on the leaves, the leaves snap shut, trapping the insect inside. The plant then secretes digestive enzymes that break down the insect's body, providing the plant with nutrients.

In a new study, researchers from the University of Bristol have discovered that the Venus flytrap also uses rain energy to power its traps. When a raindrop falls on the leaves of the plant, it creates a small impact force that causes the leaves to vibrate. These vibrations are transmitted to the hairs on the leaves, which trigger the leaves to snap shut.

The researchers found that the Venus flytrap is able to trap insects with raindrops as small as 0.1 microliters. This means that the plant can trap insects even in very light rain.

The researchers also found that the Venus flytrap is able to trap insects more quickly with raindrops than it can with insects alone. This suggests that rain energy can help the plant to trap more prey and obtain more nutrients.

The researchers believe that the Venus flytrap's ability to use rain energy to power its traps is a unique adaptation that has helped the plant to survive in its harsh environment. The plant is able to live in wet, acidic soils where there are few other plants that can compete with it. The Venus flytrap's ability to trap insects with raindrops gives it an advantage over other carnivorous plants that are not able to do this.

The study's findings are published in the journal Current Biology.