Tragedy hit a chimpanzee sanctuary in South Africa this week, when an American graduate student sustained injuries in a severe chimp attack that have left him in critical condition. Andrew Oberle was repeatedly bitten and dragged nearly half a mile by the animals. No others were injured, reported the Associated Press.In Texas, the death of a cattle herd has been tied to cyanide, or prussic acid, poisoning from "a common Bermuda grass hybrid found in grazing lands across Texas," explained AP.