A big male buffalo taking out it's frustrating on a tree was something new for me. During our trip in Kruger we came across a ginormous herd of buffalo and we caught the (older) bulls that walk (often) on the outside. Buffalo are very aggressive and it seemed like they were a bit more moody than normal. They picked fights with each other and took it out on trees. It's not uncommon for animals like buffalo and elephants (for example) to show their strength by pushing over/against trees. It shows