Trilobites: Little Tropical Fish With a Big, Venomous Bite With their large lower canines, fang blennies deliver opioid-laced venom that seems to cause a sudden drop in their predators’ blood pressure. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Bulwark Against an Abortion Ban? Medical AdvancesMind: Endless Gaming May Be a Bad Habit. That Doesn’t Make It a Mental Illness.Arvid Carlsson, Who Discovered a Treatment for Parkinson’s, Dies at 95Eclipse 2018: Is Mars being the closest it has ever been to Earth connected to Blood Moon?Footsteps: The Balancing Act of ArchesFrancisco J. Ayala, Famed Biologist, Resigns After Sexual Harassment Inquiry