How Iceland is regrowing forests destroyed by the Vikings
October 27, 2017, 7 a.m. by Russell McLendon
Only about 2 percent of Iceland is now forested, down from as much as 40 percent before Vikings arrived.
Whales and dolphins have human-like social and cultural skills
October 18, 2017, 11:57 a.m. by Russell McLendon
Social marine mammals provide a 'unique and striking parallel' to our own species, scientists say.
That huge helium deposit under Tanzania is even bigger than we thought
October 17, 2017, 12:18 p.m. by Russell McLendon
The 'world-class' helium gas field found in East Africa is a big deal, and not just because squeaky voices are funny.