We’re in the early days of Earth’s sixth great extinction, say biologists

Since 1500, more than 320 land animals have gone extinct. Populations of the remaining species show a 25 percent average decline.

Lifeform of the week: Hairy pink squat lobster

It's always a good hair day for a hairy pink squat lobster (Lauriea siagiani). These little guys live on sponges in the western Indo-Pacific.

Did all dinosaurs have feathers?

A newly-discovered species suggests that feathers were much more common among dinosaurs than once thought.

Webcam sees baby sea turtles hatch and head toward sea

These baby loggerhead sea turtles hatched from their eggs and began their march to the sea on the night of July 25.

Iron from Sahara dust helps fertilize Atlantic Ocean

Some 71% to 87% of the iron in North Atlantic seawater may have originated in dust from the Sahara desert.

See which parts of the U.S. are losing groundwater

This map shows the amount of water stored in underground aquifers in the U.S. on July 7, 2014, in contrast to the average from 1948 to 2009.

Nature’s roadblock to accurate seasonal hurricane forecasts

Nature itself puts up a roadblock to hurricane prediction - minor variations in the atmosphere - too small for seasonal forecast models to capture.

Video: Joshua Tree nights

Shot in Joshua Tree National Park in California. Relax ... and enjoy the night sky.

Record high global temp in June 2014 follows record warmth in May

The last below-average global temperature for June was in 1976 and the last below-average global temperature for any month was February 1985.

Reservoir of molten rock under Yellowstone is 2.5 times bigger than thought

If the Yellowstone supervolcano were to erupt today, it would have major, perhaps catastrophic, consequences.

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