In Sao Paulo, Brazil, authorities say that over the past week more than 500 dead penguins have washed up on the shore of beaches across southern Brazil.
The deaths have puzzled marine biologist, and as of now, they are unsure of the caused of the penguins deaths. Officials say the penguins appeared to be in good shape with no evidence of malnutrition or injury.
The penguins were Magellanic penguins that are named after the region where they mate in southern Argentina. The penguins were in the process of migrating towards warmer waters and more food.
Officials are still investigating the cause of the penguin's death but they should know the reason in less than a month.