The discovery of over 500 dead penguins has scientists puzzled in the Brazilian state of Rio do Sul. Preliminary examination of the bodies showed they bore no injuries or oil stains and were well-fed.
The 512 penguins were found between the towns of Tramandai and Cidreira by residents of the area, who then notified the environmental patrol.
Investigators from the Brazilian Center of Martine Studies (Ceclimar) have taken a sample of 30 of the birds to try and ascertain the cause of death. The results of their study will be available in a month’s time.