The estimate also comes with a price tag for describing all these Earth species, most of which are still unknown: $364 billion.
Big parks may look good on a map, but they often do little to preserve nature's rich diversity of trees, birds, mammals, and other creatures.
Cancerous tumors are parasitic organisms, new species, that depend on their host for food, says a new study.
An earthquake and a hurricane? It's never happened before in the same week, in the same place.
Like the Sound of Music's Von Trapp family, plants may be able to hide away from a warming climate in the mountains.
A non-native species of tortoise is proving a good substitute for extinct native seed dispersers in Mauritius.
The Canary Islands are a refuge for vultures.
Because there's more to life than Shark Week...