In what would be considered an absolute atrocity in the human world, male lions kill cubs that are the offspring of the former leader of the pride when they take over as ruler. This is of course something that wouldn’t sit very well with a lot of people, especially if a man done it to their new partners children. So why exactly do male lions kill cubs that aren’t theirs?
Think about it for a moment. What is the purpose for breeding? For humans there’s a significant level of fun involved in something that can be somewhat exhausting. But in the animal kingdom, sex and fun sin’t necessarily the normal experience. The main purpose is to pass on their genetic code, in the hope that they will create a stronger pride.