A `huge surprise' to monarch researchers
Sep 25, 2009 04:30 AM
Joseph Hall, Health Reporter
Monarch butterflies reach out for the sun with their antennae to navigate their miraculous, pinpoint migrations to and from Mexico, a new study has discovered.
"It was a huge surprise," says Dr. Steven Reppert, a University of Massachusetts neurobiologist and senior study author, of the finding.
"We thought we had it nailed," he says of the previous theory – that the butterfly's brain provided its sense of direction.