what "more evidence?" that article sucked. It didn't even cite what the original evidence was to support their theory, just that they speculated it.
Ok, so I see that the other article makes mention of the foot bone that appears to be distinct from other contemporary humans... curious, but not conclusive of anything.
The theory that it is a genetic condition causing smaller brains and dwarfism has been registered in other archaeological specimens from different locations and perhaps the biggest "smoking gun" of all is that it has been documented in living members of the islands population which are obviously homo sapiens sapiens. How do you explain that with the separate species theory? that they are hybrid humans? I'd say it's busted.