How many species on earth?

How many species on Earth? About 8.7 million, new estimate says. Summary: About 8.7 million (give or take 1.3 million) is the new, estimated total number of species on Earth -- the most precise calculation ever offered -- with 6.5 million species on land and 2.2 million in oceans. read more

The method led to an estimate of between 100,000,000,000 (that's 100 billion) and 1,000,000,000,000 (that's a trillion) species of microbes on Earth. "Until now, we haven't known whether aspects of biodiversity scale with something as simple as the abundance of organisms," Locey said in a statement. read more

That is a new, estimated total number of species on Earth—the most precise calculation ever offered—with 6.5 million species found on land and 2.2 million dwelling in the ocean depths. Until now, the number of species on Earth was said to fall somewhere within the large range of 3 and 100 million. read more

About 8.7 million (give or take 1.3 million) is the new, estimated total number of species on Earth -- the most precise calculation ever offered -- with 6.5 million species on land and 2.2 million in oceans. read more