A critically endangered population of killer whales in the Pacific Northwest may be encountering more noise pollution than in the past. A recent study suggests large passing oil tankers emit sounds at frequencies killer whales use to communicate and echolocate. Ultimately, researchers say, this could impede their ability to find food they need to survive.
North Atlantic right whales were given some more elbow room in critical foraging and breeding habitats off the coast of New England, Florida and South California. These new designations were made by the National Oceanic and Atmospheric Administration in hopes of further aiding the whales' recovery.
North Atlantic right whales are a critically endangered species, and so federal officials proposed that they receive 39,655 square miles of critical habitat along the East Coast in order to save them from extinction.