(Corvallis, OR)  --  The Beavers fell 69-58 Saturday to California at Corvallis to extend their losing streak to seven games, all in Pac-12 play.   Oregon State is 4-16 overall.  The Beavers will play Thursday at Colorado.  The Buffaloes are also 0-and-7 in conference play and 10-and-10 overall.