Blue ring octopus

 BLUE RING OCTOPUS . This tiny octopus is only 11/2 to 21/2 inches (4 to 6 centimeters) in diameter

§tThe blue-ringed octopus makes venom in its saliva. When the blue-ringed octopus bites its victim, it leaves saliva on the wound. The venom in the saliva causes the area around the wound to go numb. Soon, the venom causes the octopus’s victim to stop breathing. The venom is so deadly that it can kill even a human.