Each year painted lady butterflies cross the Sahara — and then go back again

They migrate 12,000 km annually, the longest known butterfly migration route

a painted lady butterfly (Vanessa cardui) resting on vegetation

GOING THE DISTANCE  Painted ladies travel 12,000 km each year, farther than any known butterfly migration.

Gerard Talavera

Move over, monarchs. The painted lady butterfly (Vanessa cardui) now boasts the farthest known butterfly migration.