This isn't hard to understand when you realize that girls have a far stronger tendency toward creating and belonging in community. (sportstarsmag.com)
The social system of elephant seals populations is shaped by two factor: land breeding during a short breeding season and strong tendency of females to aggregate when on land. (eleseal.org)
Such breeds of dog hold a very strong tendency towards protection of the things which are smaller than them. (dog-house-training-secrets.com)