The Sheep Who Texted "Wolf"

Tests underway in Switzerland to use technology on sheep to alert shepherds in the event of wolf attacks.

GENEVA, Switzerland — Using sheep to alert shepherds of an imminent wolf attack by text message might sound fanciful, but testing is already under way in Switzerland where the predator appears to be back.

"It's the first time that such a system has been tried outdoors," said biologist Jean-Marc Landry, who took part in testing on a Swiss meadow this week.