Venomous Or Poisonous, Crayfish Clones, Immune System Cancer Injection. Feb 9, 2018, Part 2 Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email The bearded fireworm, recently classified as venomous, not poisonous. ( Shutterstock ) Hosted by Ira Flatow Produced by Science Friday and WNYC Studios