Officials with the U.S government say it's time to consider the possibility that endangered right whales could become extinct unless new steps are taken to protect them.
As the North Atlantic right whale nears the end of a year of dangerously high mortality, federal ocean regulators are calling for it to remain listed as endangered.
Researchers with the U.S. government and the New England Aquarium have developed a new model they said will provide better estimates about the North Atlantic right whale population.
This summer has been the worst season for right whale deaths since hunting them became illegal 80 years ago, says the Massachusetts-based group Whale and Dolphin Conservation.
Fewer of North America's Atlantic salmon are making it back to rivers to spawn, which bodes poorly for the future of the imperiled fish, an international conservation group says.
