Look at those guys. Aren't they sweet? Well, actually, no. These lions, who were brothers, were known as The Ghost and The Darkness (which was which, I cannot tell you), and they killed something like 135 railroad workers in Tsavo, in what is now Kenya, in 1898. They are also known as the man-eaters of Tsavo. Apparently it's typical for male lions of the region not to have manes. The lions' pelts now reside in the Field Museum in Chicago.