Lice are considered parasites because they feed on human blood. Maybe lice aren't exactly terrifying, but they are annoying and can strike fear into some people because they are hard to get rid of.

Polish startup Clone Robotics has shared a terrifying new clip of Protoclone, its 'faceless, anatomically accurate synthetic human'. Like something from the Terminator movies, the 6-foot ...

two men milk the venom of a Russell's viper and then show what happens when one drop of that venom mixes with a glassful of human blood. It's terrifying. Different types of snake venom have ...