86 Percent of Earth's Species Still Unknown?
Wednesday, August 24, 2011 - 11:00
in Biology & Nature
Even after centuries of effort, some 86 percent of Earth's 8.7 million species have yet to be fully described, a new study says.
Even after centuries of effort, some 86 percent of Earth's 8.7 million species have yet to be fully described, a new study says.