The others fled single-file, lolloping across a river back to their familiar forests.

ECONOMIST: The battle to conserve India's elephants

Heading back to Arequipa, it is worth visiting some of the isolated settlements on the north side of the Colca River, reachable by a rough single-track road.

BBC: Exploring Peru��s epic Colca Canyon

The fury of a single monsoon cloudburst can precipitate enough water to overflow river banks.

ECONOMIST: From the archive

Impressionists favor the clear light of midafternoon, and instead of focusing on panoramic views, they concentrate on the quality of natural light reflected on specific surfaces a single copse of trees, a short span of running river, a group of village houses and rooftops.

WSJ: Nature in America | A Landscape in Evolution | By Barrymore Laurence Scherer

To the extent that the Nasdaq market exists anywhere, it's within a single rack-mounted Dell server in a rented data center somewhere across the Hudson River.

FORBES: About Robert Greifeld

The steel mill he bought in 1989 was part of Ford's great River Rouge plant, where the father of mass-produced cars turned raw materials into vehicles on a single site (see box, opposite).

FORBES: Man of steel

The steel mill he bought in 1989 was part of Ford's great River Rouge plant, where the father of mass-produced cars turned raw materials into vehicles on a single site -- transforming ore and rubber into finished cars (see box, p.122).

FORBES: Man of steel