What poison produces by a organism?

Many organisms produce poisons as a defense mechanism or to subdue prey. For example, the pufferfish contains tetrodotoxin, a potent neurotoxin that can cause paralysis and death in predators and humans if ingested. Another example is the poison dart frog, which secretes batrachotoxin through its skin, deterring potential threats. These natural toxins serve crucial roles in the survival of these species within their ecosystems.