The term "black widow" commonly refers to a group of venomous spiders belonging to the genus Latrodectus. These spiders are known for their glossy black bodies and distinctive red hourglass marking on the underside of their abdomens. Black widows are found in various regions around the world and prefer dark, sheltered areas. Their bites can be dangerous to humans, causing severe pain and other symptoms, but fatalities are rare with prompt medical treatment. In addition to the spider, "Black Widow" is also a popular character in the Marvel Comics universe. She is a skilled spy and combatant, often associated with the Avengers. The character, whose real name is Natasha Romanoff, has appeared in various films and comic series, gaining a significant fan following due to her complex backstory and strong personality.