Why is human culture—the shared body of knowledge passed down across generations—so much more powerful than animal cultures?

More than 420,000 children in the Amazon basin are being badly affected by a drought parching much of South America that is impacting water supplies and river transport, UNICEF said Wednesday.

A "dangerously fast" wildfire fanned by hurricane-strength winds was burning out of control near Los Angeles on Wednesday, with thousands of residents ordered to evacuate and some taken to the ...