Probably have to goto several websites to get all this. For starters, cattle from two basic groups: bos indicus and bos taurus. You can also try e-mailing the two major associations: <A HREF="http://www.itla.com" TARGET="_blank">www.itla.com</A> and <A HREF="http://www.tlbaa.com" TARGET="_blank">www.tlbaa.com</A> Finally, just try surfing the key words (meta tags) in your browser and see what turns up! Good luck! P.S. Cattle cycle about every 21 days...if an alert bull is around, he'll probably breed a heifer or cow. Eat? Longhorns will eat about anything....lol.