Did you know that Highland cattle have established dominance hierarchies? The strong relationships between these cattle were associated with low aggressive tension, which could help explain their increased reproductive performance!
Sketch contributed by Maggie Creamer
Source: Reinhardt, C., Reinhardt, A., & Reinhardt, V. (1986). Social behaviour and reproductive performance in semi-wild Scottish Highland cattle. Applied Animal Behaviour Science, 15(2), 125-136.