A trio of respected biologists and zoologists concludes that Earth's sixth mass extinction may be unfolding slower than feared, giving time for the valuable work of cataloging the planet's species.
Rarest whale: Two spade-toothed beaked whales, a mother and calf, were stranded on a beach in New Zealand. This is the first time this species of whale has ever been seen as a complete specimen.
Using methods borrowed from epidemiology, researchers have identified Anatolia, a peninsula that is now part of Turkey, as the origin of the major language families of Europe and West Asia.
A study of clouds over the last 10 years has found that their altitude has been declining, perhaps offsetting some global warming.