Unlike most what-if battles between fearsome animals, a lion and a gorilla could actually cross paths in the Democratic Republic of the Congo, where their ranges overlap. Both creatures are absolute ...

Just this month, a silverback gorilla died while under sedation. In the past two weeks, a 2-year-old elephant and 18-year-old sea lion also died.

Just this month, a silverback gorilla died while under sedation. In the past two weeks, a 2-year-old elephant and 18-year-old sea lion also died.

Just this month, a silverback gorilla died while under sedation. In the past two weeks, a 2-year-old elephant and 18-year-old sea lion also died.

Just this month, a silverback gorilla died while under sedation. In the past two weeks, a 2-year-old elephant and 18-year-old sea lion also died.

Just this month, a silverback gorilla died while under sedation. In the past two weeks, a 2-year-old elephant and 18-year-old sea lion also died.

Just this month, a silverback gorilla died while under sedation. In the past two weeks, a 2-year-old elephant and 18-year-old sea lion also died.

The zoo said it performs as many as 175 surgical procedures a year, but each surgery presents an unknown risk. “We know it has certain risks,” Goodman said. “We know that wild animals unfortunately ...