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 popular culture, "Black Widow" also refers to the fictional character Natasha Romanoff from the Marvel Comics universe. She is a skilled spy and martial artist, often associated with the Avengers team. The character has appeared in various films and comic series, becoming a symbol of strength and resilience.