Painted lady butterflies are world travelers. The ones we encounter in Europe fly from Africa to Sweden, ultimately returning to areas north and south of the Sahara. But what determines whether some ...

The findings challenge previous assumptions about butterfly migration and highlight the role of phenotypic plasticity.

Retired Lt. Col. Harry Stewart Jr, one of the last surviving Tuskegee Airmen, has died. He was 100. Stewart was one of the ...