A hippo attack is one of the mostly deadly encounters one can face. The hippopotamus can kill other ferocious animals with ease--such as crocodiles and lions--let alone human beings.
The castor oil plant has many uses including natural hair growth and eyebrow and eyelash improvement. But it also contains a poison called ricin, as seen in the show Breaking Bad. Extraction of this toxin comes from the castor beans.
Half the people in the US who eat fish daily exceed the safe dosage of mercury. If you find yourself suffering from mercury poisoning, here's what you need to know to survive.