“it would be a first among lions as they normally kill the cubs.”
...libs rewrite history, they can rewrite nature.
Lions kill the cubs of unrelated males when they take over a pride. In both the wild and in captivity it is not unusual to have two males-often brothers-as co-rulers of the pride, sharing the defense of the pride as well as breeding rights. Having two males in charge lessens the chance of takeover of that pride by another male-safety in numbers.
Some years ago, there was a study of domestic cats on several farms in Britain done-the nice kitties were exhibiting pride behavior, including hostile takeovers and killing of the defeated males’ kittens, just like lions do.