Butterflies use optical illusions to dodge predators

A study conducted by the University of Essex has found that certain species of butterflies use optical illusions to evade predators. Researchers observed that the butterflies, specifically the monarch butterfly, will move their wings in a way that creates a 'shimmering' effect, making it difficult for predators to track their movement. This behavior is called 'wing-waving' and is a form of deception used by the butterflies to distract predators and create uncertainty about their position and speed. The study suggests that this behavior is an example of an evolutionary adaptation that has developed in response to predation pressure.