The fear of spiders is known as "arachnophobia." This specific phobia can provoke anxiety and panic in individuals confronted with spiders or even just images of them. It's one of the most common phobias, potentially stemming from evolutionary factors where an aversion to certain animals, including spiders, may have offered survival advantages. Symptoms can include rapid heartbeat, sweating, and a strong desire to flee the situation. Treatment for arachnophobia often involves therapy, such as cognitive-behavioral therapy (CBT), exposure therapy, or relaxation techniques to help individuals manage their fear and anxiety levels.