Marine venom refers to the toxic substances produced by various sea creatures, such as jellyfish, cone snails, and octopuses. These venoms serve different purposes, including defense against predators and capturing prey. The complexity of marine venom can vary greatly, with some being mild irritants while others can cause severe pain or even death. Scientists study marine venom to understand its components and potential medical applications. For example, certain compounds found in venomous fish and sea urchins have shown promise in developing new painkillers or treatments for diseases. This research highlights the importance of marine biodiversity and its potential benefits for human health.