Rattlesnake is a thoroughbred horse born in Australia in 2000. Race horse Rattlesnake is by Cogitate (AUS) out of Southern Success (AUS) , trained by Adam O'neill. Rattlesnake form is available here. Owned by B W & MRS M DALTON, D A DRUST, J N EDMUNDS, R J BALLARD, M R DICKINS, G C DAVIE & C J & S JPALE BLUE AND WHITE STRIPES, LIME SLEEVES AND CAP..