The present study aimed to investigate the reproductive biology of male killer whales. Changes in the concentrations of two circulating testicular hormones. inhibin and testosterone. were monitored during sexual maturation of two male Type 1 Eastern Northern Atlantic killer whales over a period of 20 years. https://www.roneverhart.com/NeOn-Zero-Lefty-M390-BLADE-TITANIUM-HANDLE-MRBS-p11472/