A territorial male lion goes about marking a tree with his powerful claws, by scraping claw marks into the bark. By doing this, he is creating a permanent visual sign, and a temporary scent mark, for other lions to read. Image captured in the Okavango Delta, with Andy Biggs Photo Safaris and Eyes on Africa. I used a Canon 5Dmk3 and EF 500f4L IS to take the picture. S/speed 1/1000sec at f7.1, iso 800.