Actually... (Score 3, Interesting)

There is actually good reason to believe that homo neandertalis is still very alive in some parts of the world. Isolated regions of the planet often have some groups of people who are unable to interbreed with other groups that have been active members in the gene pool. Although homo neandertalis would probably have evolved just as much as our own homo sapiens since the time of the neanderthal skeleton, they could easily still be living. It is also possible that homo erectus could be alive, but this is less likely because of their smaller brains. Homo neandertal is able to compete with, though not dominate, homo sapiens because we have similar cranial mass, but homo erectus just didn't have enough brains to cut it.