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:SpaceX Mars launch: Elon Musk vows 'sell your house and fly to Mars' for THIS ticket priceCharles Darwin Day 2019: Where did Charles Darwin grow up, what was he famous for?Yellowstone volcano: Thermometers spike as HOTTEST temperatures on Earth are recorded'Alien INVASION?' Russian satellite spots bright blasts in atmosphere - scientists BAFFLEDTrending: Need a Breath of Fresh Air? Hotels to the Rescue.NASA asteroid tracker: LOOK OUT as three giant asteroids skim the Earth TODAY