A venom is a chemical of biological origin used by the animal for the purpose of attack or defence. Its collection is a dangerous process and should only be carried out by trained personnel. Venom is obtained from the various creatures in different ways. Snakes and funnel web spiders are milked for their venom. Stonefish, redback spider and box jellyfish venoms are extracted from the animal by dissection of venom glands or cells.
