This is very heartbreaking; News from this morning Sudan, the world’s last male northern white rhino, has died, putting his species on the brink of extinction From the article: "Sudan spent the last years of his life under 24-hour protection from armed guards. His horn had been chopped off to deter poachers, though it had begun to grow back. His guards regularly foiled poaching attacks. But the effort to save the northern white rhino seems to have come too late for a real turnaround." Amazing that we have let things get to this level. There are now only two northern white rhino's left on earth, both female. There is still some slim hope that in-vitral fertilization can pull them back from the brink, but that is a very slim hope.