According to CNN, authorities are looking into the deaths of 877 dolphins that have washed up on the northern coast of Peru this year.
Peruvian Deputy Environment Minister Gabriel Quijandria reported on Peru’s state-run news agency that the dolphins may have died from an outbreak of Morbillivirus or Brucella bacteria.
More than 80 percent of the dolphins that washed ashore were an advanced state of decomposition, which made it difficult to study their deaths, according to the news agency.
Thus far, officials have been able to rule out lack of food, interaction with fisheries, pesticide and biotoxin poisoning and heavy metal contamination as the reason for the deaths. Results indicating if it was caused by contamination by a virus are expected to be ready in the coming days, according to the article.
Peru is not the only country where dolphins have washed ashore.
One hundred seventy nine dolphins– 108 of which were dead– washed shore in Cape Cod, U.S., in February, according to the International Fund of Animal Welfare. A cause has not been determined on those deaths.
And in Rio de Janeiro, Brazil, more than 30 dolphins were on shore– all returned to the ocean, according to the article.