TY - RPRT TI - Food abundance, prey morphology, and diet specialization influence individual sea otter tool use AU - Jessica A. Fujii AU - Katherine Ralls AU - M. Tim Tinker PY - 2017 DO - 10.1093/beheco/arx011 UR - https://pubs.usgs.gov/publication/70191005 ID - 70191005 ER -