Venom types. Among the major classes of toxin in venoms are: Venom is widely distributed taxonomically, being found in both invertebrates and vertebrates; in aquatic and terrestrial animals; and among both predators and prey. The major groups of venomous animals are described below. Venomous arthropods include spiders, which use fangs — part of their chelicerae — to inject venom; and centipedes, which use forcipules — modified legs — to deliver venom; along with scorpions and stinging insects, which inject venom with a sting. In insects such as bees and wasps, the stinger is a modified egg-laying device — the ovipositor. In
Anti-Venom (symbiote) event, overusing his healing powers can cause Anti-Venom's powers to weaken. The Anti-Venom symbiote's animated debut is seen on "Ultimate Spider-Man vs the Sinister Six", voiced by Matt Lanter. This version is created by Doctor Octopus and Michael Morbius from a sample of the Venom symbiote, and Harry Osborn is its host. In its self-titled episode "Anti-Venom", this symbiote is created as a candidate for Doc Ock's Sinister Six. Anti-Venom nearly kills Agent Venom only to be stopped by an ion inhibitor used by Spider-Man and Iron Patriot which leaves Anti-Venom unconscious, and its host in a coma. Anti-Venom returns