Aidan O'Brien added two more strings to his Epsom Derby bow at York on Thursday as Black Bear Island and Freemantle finished first and second in the Group 2, $227,000 Dante Stakes. A full brother to 2002 Epsom Derby winner High Chaparral, Black Bear Island came from last to first with a late rush in traffic under Colm O'Donoghue to catch his pacesetting stablemate near the line for a head victory. Sans Frontieres was three-quarters of a length away in third with the 2-1 favorite Crowded House a one-paced eighth.