Although Lions were glamorized in Disney's "The Lion King", what you may not know is that when a new male lion takes over a new pride, he will kill all the offspring in this pride, so that he can mate with the females of the pride and produce cubs of his own DNA. This is an example of Infanticide in the animal kingdom.
Kind of reminds me of my experience when visiting Yellowstone National Park with my parents in the early 60's. I turned my head and right there at my window was a bear looking at me. Scared me to death!