text: This was the place where I observed and photographed their spectacular cooperative feeding using a bubble net the most. Their baleen plates can clearly be seen in this photo. They have about 330 pairs of dark gray baleen plates with coarse gray bristles on the inside hanging from the jaws. They are about 25 inches (0.6 m) long and 13.5 inches (34 cm) wide. They act as filters to trap their prey when they shut their mouths and expel the water.