Giraffes fight kung-fu style at Chudob waterhole in Etosha National Park, Namibia. /VCG Photo

This is the moment two long-necked giraffes go head to head. The high-kicking male giraffe kicks its legs above another's neck in an attempt to show its strength. /VCG Photo

Wildlife photographer Anja Denker snapped this giant beast bashing a luckless rival for at least half an hour before they went their separate ways. /VCG Photo