Over 300 Southern Right Whale Calves Die Along Argentina's Coast This Year

More than 300 southern right whale calves have died along Argentina's coastline this year, alarming marine biologists. Early investigations point to a bacterial infection as a probable contributor to the rising death toll. Deaths among adult and juvenile whales, which are seldom seen, have also been reported. Researchers are examining environmental changes that could be reducing calf survival rates. It remains unclear what long-term impact this spike in mortality will have, even though the whale population has been recovering.