‘Wonders’ still await as world’s species abound

WASHINGTON – Our world is a much wilder place than it looks.

A new study estimates that Earth has almost 8.8 million species, but we’ve only discovered about a quarter of them. And some of the yet-to-be-seen ones could be in our own backyards, scientists say.

So far, only 1.9 million species have been found. Recent discoveries have been small and weird: a psychedelic frogfish, a lizard the size of a dime and even a blind hairy mini-lobster at the bottom of the ocean.

“We are really fairly ignorant of the complexity and colorfulness of this amazing planet,” said the study’s co-author, Boris Worm, a biology professor at Canada’s Dalhousie University. “We need to expose more people to those wonders. It really makes you feel differently about this place we inhabit.”

Biologists have long known that there’s more to Earth than it seems, estimating the number of species to be somewhere between 3 million and 100 million. Figuring out how much is difficult.

Worm and Camilo Mora of the University of Hawaii used complex mathematical models and the pace of discoveries of not only species, but of higher classifications such as family to come up with their estimate.

Their study, published Tuesday in the online journal PLoS Biology, a publication of the Public Library of Science, estimated the number of species at nearly 8.8 million.

Of those species, 6.5 million would be on land and 2.2 million in the ocean.

The research estimates that animals rule with 7.8 million species, followed by fungi with 611,000 and plants with just shy of 300,000 species.

While some new species like the strange mini-lobster are in exotic places such as undersea vents, “many of these species that remain to be discovered can be found literally in our own backyards,” Mora said.

The study said it could be off by about 1.3 million species, with the number somewhere between 7.5 million and 10.1 million.

Of the 1.9 million species found thus far, only about 1.2 million have been listed in the fledgling online Encyclopedia of Life, a massive international effort to chronicle every species.