Illegal wolf killings spark an investigation in Washington, an increase in medicines containing banned animal parts, super-sized penguin fossils discovered in New Zealand, and a Bryde’s whale carcass in Namibia could help settle a century-old scientific conundrum! Get these stories and more in this week’s roundup of nature news. SHARK-DRAGGING CASE CLOSED ANCIENT PARASITE   SUPER-SIZED PENGUIN LIZARDS OF OZ  TASMANIAN TIGER VULTURE DECLINE SUMATRAN RHINOS IN TROUBLE WOLF REWARD ILLEGAL TRADE MEDS NEW MARINE REFUGE BRYDE’S WHALE WASHUP