 birth at about the same time, and then they rear their cubs together. And so within that system, you often have a number of males growing up from cubhood through adolescence. If they have some siblings, they're going to go with them because they're in competition against other groups that are also producing coalitions of males. In some of the larger parks, more abundant prey, you might get seven or even nine males staying together when they first take over their prides. So a pair is really quite the norm.