revision preference src: This is probably how walruses got their family name " Odobenidae ", which comes from Greek words meaning " one that walks with teeth ". <SEP> They do not walk with their teeth, but it can look as if they do when they pull themselves out of the water. <SEP> tgt: The compound " Odobenus " comes from " " (Greek for ' teeth ') and " " (Greek for ' walk '), based on observations of walruses using their tusks to pull themselves out of the water.