Scientists have discovered the source of the "bio-duck" sound, a strange noise that has mystified scientists and submarine captains in the ocean off Antarctica for decades.
Every year, dozens of whales become entangled in fishing gear off the U.S. Atlantic coast. The Atlantic Large Whale Disentanglement Network works to save them.
Many marine mammals use hearing to find their way through the world. But parts of the ocean are filling up with man-made noise, and that has the potential to leave them partially blinded. The CETSOUND project might help.
NWFSC scientists Eric Ward and Elizabeth Holmes, along with Ken Balcomb of the Center for Whale Research, have found a correlation between the abundance of Chinook salmon and the fecundity (reproductive success) of killer whales.
