An electrician's job is dangerous because electricity is invisible, you can not tell if the circuit is on or off. Being an electrician can actually be fairly safe if you get the proper training (OSHA...
Both of them are dangerous. The lionfish is full of poison spines and skin, and eats meat. Tigerfish eat meat and have sharp big teeth, but are not poisonous.
The Monito Gecko is not dangerous, it is extremely rare. The Monito gecko is endangered. Its Binomial name is Sphaerodactylus micropithecus and is closely related to S. macrolepis, a species common...