A man entered an animal's enclosure in Brazil and was mauled by a lion.

Shocking viral video shows 19-year-old climbing into lion enclosure at Brazil zoo, resulting in fatal mauling. Teen had dreams of becoming lion tamer.

The 19-year-old victim climbed up the side structure of the animal's cage in a Brazilian zoo and lowered himself into the enclosure by sliding down a tree.

The park said that "euthanasia was never considered" for the lioness, who "shows no aggressive behavior outside the context of the incident." ...