This parasite is a proper nightmare fuel. The CDC explains that female botflies use mosquitoes as couriers, attaching their eggs to the insects’ bellies. When a mosquito bites a person, the body heat ...

It is also one of the world’s most venomous fish. When hunting, it waits motionless until prey comes close, then sucks it into its mouth in less than a second. For people, stepping on a stonefish can ...