The gray
whale is a baleen whale (it is a filter feeder). Whalers
used to call them "devilfish" because of their
fierce defense they put up when hunted. They have a
layer of blubber up to 10 inches (25 cm) thick. There
are hairy bristles (vibrassae) on the gray whale's snout
and the front of the head. These are used as tactile
sensors, like cat's whiskers.