StaredownElephants grow throughout life and so do their tusks. Bulls with the largest tusks are often the oldest. Tusks indicate age, not virility. Bulls can live to be 70, but their reproductive prime is likely to be closer to 40 45. This is when they come into musth for longer, and when they mate most. Part of the New Amboseli Collection by Kerry de Bruyn. Limited Edition [20] Artist Signature.