In the decades of the 1920s and 30s the phrase of the hunter Jim Corbett became very popular: non-dangerous lions for conventional prey are the most dangerous for humans. And he seems to have no reason. In 1898 two giant lions almost 3 meters high killed 130 workers who were building the railroad in Kenya. Lions were hunted and their skulls remain at the Chicago Museum of Natural Sciences. Zoologist Bruce Patterson analyzes the two skulls and observes that one of the lions had a broken tusk and at the base of the candlestick had an impressive pus sheath. Lions use canines to pierce prey necks and decrease their spine. However, the lion investigated could not use the wounded canine to hunt buffaloes and zebras and, according to Bruce Patterson, it was for this reason that humans sought to be slower, softer and less able to defend themselves. The second lion had no physical disability. Why did humans also hunt? According to Patterson, he was going to have another limit or was following an aggressive prevented lion.