 A manuscript he wrote about the penguins' sexual habits, which included sexual coercion, sex among males and sex with dead females, was deemed too indecent by the Keeper of Zoology at the British Museum of Natural History, Sir Sidney Harmer, and prevented from being published.Nearly 100 years later, the manuscript was rediscovered and published in the journal "Polar Record" in 2012.The discovery significantly illuminates the behaviour of a species that is an indicator of climate change.