Dear colleagues, I am studying skeleton of killer whales worldwide. My question is primarily to curators and researchers of museum collections. Does anyone have skulls, flippers, or whole skeletons of killer whales with known ages, estimated ages, or at least estimated age category, and with known sex? I will be extremely grateful for any information. Best regards, Pavel Dr Pavel E. Gol'din, Department of Zoology, V.I. Vernadsky Taurida National University, Simferopol, Ukraine